Categories of XP Systems

For some, the XP systems are the lifeblood of the campaign, the juicy reward you work for through your adventure. However, as with any system, the Experience Points can be much more than a simple carrot to dangle in front of your players. Ideally, it would be one of the systems used to reinforce the themes of the game and the intended playstyle.

In a well designed system, any system should reinforce the intended set of playstyles or general things to happen in a session. Human brains are designed to optimise a reward-seeking behaviour, so if the characters in our game get rewarded with XP for doing something, we are naturally encouraged to do that thing more to get the same reward. If you get XP for killing monsters, you will seek out more monsters to kill, etc.

Below is a large compilation of various XP systems that I tried arranging into a somewhat cohesive whole. However, because sometimes the systems have odd edge cases with how XP is given out, some of them might not fit as neatly. I've also tried briefly explaining any important mechanics relating to XP in any given system, but by no means is it an exhaustive explanation - that would take too long. Finally the various sections feature an insight into what the given XP systems might encourage from the players and the game as a whole.

Goal-Based XP - Dungeons and Dragons, Stars Without Number

Goal-Based XP systems are very focused on characters accomplishing set goals.

Dungeons and Dragons is a staple when it comes to Goal-Based XP rewards. Most of you should have come across this infamous XP table for how much XP to reward based off what sort of adventure the party is having:

You use it to figure out how much XP to give out per encounter the party completes, and you multiply it by factors such as the number of monsters and so on. It's very cut and dry this way. In short - you have your goal ("a monster is attacking you, stop it") and you get XP for completing your goal ("kill the monster").

The Dungeon Master's Guide also gives you a few alternative ways to reward XP - for completing noncombat challenges, for reaching significant milestones, or per-story / per-session rewards. All of those are a variation of "Goal-Based XP".

Stars Without Number features a similar system. By default, you get flat XP per session, but you can change it to getting XP for achieving a personal goal, completing a mission, or more interestingly - loot. The group can decide they would tie their character progression based on how much money they get, or how much money they "waste" on things other than themselves.

All in all, Goal-Based XP encourages the players to think of the game as a series of challenges to overcome in a vein of more modern computer RPGs - "here is your quest, do a quest, get reward". It is a fairly straightforward system, but it doesn't encourage much nuance - you're not really rewarded for having an introspection as a character, having some meaningful interactions or the like.

XP by Practice - Cyberpunk, Call of Cthulhu, Mouse Guard

A different approach to gaining XP is to reward a player for using a particular skill. A few old-school and more modern RPGs use this system.

In Cyberpunk 2020, characters have a list of skills, stuff like Rifle, Drive, First Aid, Personal Grooming, etc. When a character uses that skill in a session and succeeds, they mark it, and at the end of the session the GM awards the player skill-specific XP (called Improvement Points) based on how critical that skill was to the character or the party this adventure. If you accumulate enough Improvement Points for that skill, you level it up.

While you will get the bulk of your IPs from using a given skill, you can also get some basic IPs from studying or training that skill as a way to get at least a few ranks in a skill in a safer environment.

An interesting paradigm my old GM pointed out in regards to this system is that you tend to get more IPs the more you fuck up a mission (while if you succeed a mission you get more cash). Surviving by the skin of your teeth by driving away action movie style is more important to the character than driving away from a heist that went smoothly, so it nets you more IP. If GM is generous, if you are the last person alive from the party, you count as the entire party, ergo netting you even more IP for critical successes.

 A similar but less bombastic system is in play in Call of Cthulhu. Whenever the character uses a skill successfully, the GM can prompt them to mark it. At the end of the session you roll for every skill you have marked - if your roll fails (aka - more often for things you are bad at, and less often for things you are good at), it goes up. Simple and straightforward.

Contact has a system where you get a flat XP (based on your int) for using a skill, whether it's a pass or fail (critical successes double the XP, critical failures net you a 0). When you accumulate enough points, your skill goes up. You can train / study for another flat XP gain.

Mouse Guard adds a twist to the formula - you track how many times you have succeeded and failed in a given skill separately, and you have to get both of those numbers high enough in order to level up that skill. During the GM turn you have to pretty much go with the flow as to whether you can succeed or fail, but during the players' turn, you can influence your odds by doing harder or easier challenges to get that specific pass / fail you need.

All in all, XP by Practice encourages the players to be active - to be the person that drives, shoots, talks, gets into trouble, etc. The more rolls you make, the better your character becomes. While this solves the issue of players being passive or not wanting to take initiative, it can be a dangerous tool if you have an attention hog in your party. The system encourages you to be active all the time, even if that would be hogging the spotlight from someone else. Even if that is not an issue in your party, it can encourage hyper-specialisation - "you are the best healer, therefore you should roll to heal. Because you rolled to heal, you become better at healing". You can break up the monotony by forcing characters into a situation where they have to roll out of their comfort zone, but if you are behind on some skill, you have to put in a lot of effort to catch up.

Character Growth XP - Apocalypse World, The Veil, Star Trek Adventures

Systems that use Character Growth XP tend to focus more inwards. The adventure of the session is a way for the player characters to reflect on themselves and the characters around them. These XP criteria can get a bit complicated, so please bear with me.

In Apocalypse World, you get XP for rolling a highlighted stat (stats that best highlight the character), but more importantly - for getting your relationship with another player character (the relationship is called Hx) to "roll over and reset" (either by being very positive or very negative). You gain relationships with other characters either by causing that character to get hurt, or at the end of the session by selection a character that "knows you better than they used to". You lose relationship if someone "doesn’t know you as well as they thought". You also get XP for being manipulated by another PC, or by a few other moves. All in all, the system revolves around relationships with other characters and moving them up or down, even if it has a few other things going for it.

In The Veil, you get a point of XP when you attempt to do something for your own benefit and fail, but also more importantly for things revolving around your Beliefs. A Belief is what it says on the tin - a belief that drives your PC. If your Belief is tested, you get an XP, if it gets you into trouble, you get 2XP, and if your Belief is erased, resolved or changed after being tested - you get 3XP. The system thus encourages you to have Beliefs that would be challenged every session so you can see what ideas will persevere.

Star Trek Adventures is another big and a bit complicated system. First, the character can earn Normal Milestones for challenging their Values ("duty above all else", "we will persevere", etc.) and Directives ("The Prime Directive", "Seek Out New Life", etc.), using those two in a positive or negative way, or getting hurt by an attack. These encourage you to test and question your beliefs and to better yourself - the reward for getting Normal Milestones is usually a shift in focus and replacing your Values, rather than adding more things onto your character.

Characters that were particularly prominent during an adventure receive Spotlight Milestones. Those are used to further shift the focus of your character, but also to alter your Ship's stats as well (refocusing it based on the major events of the adventure). Every few Spotlight Milestones you get an Arc Milestone, which allow you to improve yourself or the ship (by adding points, rather than shifting them around).

Similarly, your character can also gain and lose Reputation based on their actions. They gain it for acting according to orders and Directives, preventing combat, establishing an alliance with an enemy, saving lives and acting above and beyond the call of duty. You lose reputation for challenging a Directive, personnel under your command getting killed, resorting to lethal force without cause and taking unnecessary risks. Reputation is used to gain ranks, privileges and responsibilities in the Starfleet and it is a mostly roleplay progression.

All in all, Character Growth XP is pretty useful when you want the game to focus on the characters at play. Everything loops back onto them and their relationships with themselves and each other, and the adventures of a session are useful mostly when they let the characters have those moments of introspection.

Cinematic XP - Broken Worlds, Fellowship, Chronicles of Darkness

Systems with Cinematic XP put an emphasis on things you would see in a movie or TV show.

In Broken Worlds, you can get XP by using a Train move (which is required to actually level up), but more importantly you will be getting XP at the end of the session for "failing in some regard", "exposing yourself to danger, cost or retribution through your actions" and "progressing your story in a meaningful way". Those three things you could easily see in any TV series - you want the characters to fail because that builds more complicated stories. You want them to expose themselves to danger, since playing safely is boring. And finally, you want all of that to have a meaning to the overall story.

Fellowship has a similar system, although it could just as accurately be described as Goal-Based XP. At the end of the session, you progress if you "saved or protected a community in need", "strike a blow against the Overlord and their minions" and "learn more about the world and its people". The system fits the narrative structure of the Fellowship where you're supposed to be on a somewhat serialised quest like Avatar the Last Airbender.

Finally, there is Chronicles of Darkness, a system with many ways of earning experience. Firstly, a character can get XP for fulfilling or making significant headway towards an Aspiration. Aspirations are either short-term, or long-term things you as the player want to happen with the character. This distinction is important - Aspirations are a Doylist choice by the player, not the character ("my character Watson doesn't want to get hurt, but me, Doyle the writer want him to get into trouble"). For Vampires, some of their aspirations revolve around the vampiric world, and some around the human world instead of being short-term and long-term.

Then, you earn XP for dramatic things that happen to the character - when they get hurt badly enough to be in danger, when a Condition ("Guilt", "Fugue", "Spooked", etc.) impedes them or gets overcome, or when you make your failure a dramatic failure. These generally denote some serious complications the characters might face.

CoD gives you a standard 1 Beat (partial XP) automatically at the end of the session, any dramatic scene can reward additional Beats at storyteller's discretion, and similarly exceptional roleplaying, tactics or character development might merit another Beat.

Another major source of Beats is risking a Breaking Point - when you challenge what it is to be human, when you are faced with supernatural forces beyond your comprehension or the like (appropriate to the supernatural type you are playing), you get a Beat. The Breaking Point check usually also results in a Condition that gives more Beats.

Some supernatural splats also reward different kind of Beats. Playing a Mage you can earn Arcane Beats for following your Obsessions (Mage Aspirations), dealing with consequences of your Magic (Act of Hubris, Paradox), being tutored or tutoring others, and encountering supernatural creatures. Playing a Demon nets you Cover Beats for living under the radar, acting according to your Cover (fake identity / skin you wear to hide in plain sight), or for forging demonic pacts.

This long long list should about cover most of the Chronicles of Darkness splats and systems.

So all in all, Cinematic XP is focused on creating "cinematic" moments in your sessions - moments of high tension, high drama and high consequences. Your story might be one of beating up baddies wuxia style, being the hero that rises up against an evil Overlord, or of a film noire detective getting beaten up on the curb. Whatever it is, it is your story to tell.

Hodge Podge XP - World of Darkness, Exalted

For the sake of completeness and to contrast against the Chronicles of Darkness, lets have a look at Old World of Darkness (Vampire the Masquerade, etc.) / New World of Darkness (Chronicles of Darkness 1st edition - Vampire the Requiem 1st ed, etc.). The system presented by these systems is a bit hard to categorise. You get XP for completing a session, for your character learning something new, for roleplaying your character well, and for acts of heroism. At the end of a story arc, you get additional XP for succeeding at the adventure, for surviving dangerous situations, and for displaying wisdom and coming up with clever plans. In nWoD, you would also get bonus XP when a Flaw you took would impede your actions.

All in all, it's a bit of a Hodge Podge when it comes to categorising. Some are for Character Growth, some are for Cinematic, and some could be considered Goal-Based. The system generally seems to just give you rewards for things you are expected to have in an RPG, without any special focus.

A bit of a more focused Hodge Podge XP system can be found in Exalted. In the 3rd edition, you get a flat mount of XP per session. You also get a bonus Solar XP for two things - Expression and Role Bonus. Expression Bonus comes in when you are impeded by a Flaw, reveal something about your character by expressing / supporting / engaging their Intimacies or being challenged, endangered or harmed while protecting or upholding your Intimacy. Role Bonus comes into play when you cede your "spotlight" and let another character shine in their Caste, or by doing something impressive in accordance with your Caste.

Exalted's Hodge Podge system, despite drawing from Character Growth and Cinematic systems, works much better than World of Darkness since it is used to highlight the key mechanics of the system. Intimacies are important in the system, so you get rewarded for engaging with them. Castes are important to what the characters are, so you should express yourself with them. Sharing the spotlight is important, so even if you don't get to shine, you still get rewarded for not interfering with someone else's moment to shine. It's quite coherent in its design.

Conclusions

Well, that was a long and varied list. If anything, this goes to show how varied the RPG experience can be. You can try to draw a number of conclusions from the comparison.

First of all, if you are designing or homebrewing / homeruling a system, take a moment to think about the XP system and see what sort of games and sessions it encourages. Are those elements congruent with the themes of the system? If so - great! If not - you might want to tweak them. XP system is like any other part of the game you're playing - a tool to help you tell the stories you want to tell. It's best when it encourages the playstyle and experience you want to get, not work against it.

Secondly, you should be aware of what sort of playstyle is encouraged by the game you're playing. Just like other mechanics and themes of the game, it will shape your play. Keep that in mind.

Thirdly, if you are playing a system where the XP system feels bad or like an afterthought, you should probably change it to suit your individual playstyle. In our game of Exalted vs World of Darkness we did exactly that - we threw away the oWoD XP system and made our own that encouraged us to keep looping back into the core themes of our game (it being a game set in high school, we were encouraged to engage with the high school and home life setting, despite being avatars of ancient demigods that fight vampires on the regular basis).

Finally, comparing the systems, it seems that mostly "XP by Practice" could be a detrimental system for an overall constructive play under the wrong conditions. All other systems can be made to serve your story just as well. You can mix and match elements from either to create the perfect experience for your game as long as you are aware of what purpose a given system serves. You want an XP system to reinforce your themes and other mechanics, even if you have to draw from different inspirations. That is fine.

All in all, your XP system will shape your game to a greater or lesser extent. Just like with any tool in your arsenal, make sure it is aligned with the vision of what you want your game to be.

Dexterity is King

While playing various RPGs, you sometimes see tropes and patterns emerge. We recently started playing Exalted vs the World of Darkness (a "fan" expansion for Old World of Darkness from a former Exalted and 20th edition oWoD writer), and coming back from playing a fair share of Chronicles of Darkness, we were reminded of an old trope - Dexterity is King.

Dexterity is King means that among all stats a character has, one of them is clearly more important than others. That one stat is usually Dexterity. Here are some examples of why that might be.

Godbound

Godbound is an OSR-based system that uses the well known stats of Strength, Constitution, Dexterity, Intelligence, Wisdom and Charisma. You can use any of those stats for rolling checks ("roll vs Charisma to try to persuade someone") and two stats always contribute to a saving throw. However, when it comes to combat, you only use the first three stats.

Constitution gives you HP, and that's all it does. Strength and Dexterity are used when you attack something. If you are doing melee, you use Strength, and if you do ranged, you use Dexterity. Your to-hit is determined by the attribute used, your damage modifier is also determined by the attribute used. In that regard, they are interchangeable. However, on top of that, Dexterity is also used to determine your Armour Class, something that's useful for any combat character.

With all of that, if you are going strictly for optimal play, why wouldn't you always take max Dexterity and dump Strength? Being able to not only hit things at a range but also get better armour while you're at it is clearly a better option. Of course, flavouring your character and the choice of Words will encourage you to pick the other option, but usually you'll never make Dexterity your dump stat in Godbound.

Stars Without Number - Int is king too!

Stars Without Number (looking at the Revised Edition here) is another OSR-based system from the same author. Unsurprisingly, Dexterity is also King here - it still modifies your Armour Class, is used by ranged weapons, etc. On top of that it modifies your Initiative, and can be used for a variety of spaceship rolls.

The system does have a few things going for it though - melee weapons have an additional Shock amount of damage they inflict even on a miss, and there are a few Foci around you can use to make yourself quite viable as a melee or hand-to-hand combatant in a scifi setting with plasma guns.

While running a game in SWN, we came across another interesting quirk however - Intelligence can be King too. My specific character was a True AI and was very starship-focused. As it turned out, the system around using spaceships was built around the concept that some characters might not have Dexterity since they could lack a humanoid, physical body (such as a Virtual Intelligence that is the ship, or an AI that gets plugged into the ship). So now pretty much every starship-related roll can be made with Intelligence - piloting, gunnery, star navigation, ECM jamming, etc. On top of that, True AI use Intelligence modifier to get more Processing (power points used to power their "magic"). Int became such a dominant attribute that I developed a 6 level plan for my character to increase it by 4 ranks just to get that extra +1, which was a more optimal strategy than increasing my skills.

Mouse Guard - Attack is King

Mouse Guard is an RPG set in the comic book setting sharing the same name. In this system, the conflict resolution revolves around picking a series of actions to carry out against your opponent. You can Attack, Defend, Manoeuvre or Feint. Attack trumps Feint, Feint trumps Defend, and the other combinations carry out either independently or based on the difference between successes. Attack and Manoeuvre don't have any hard counters. Manoeuvre lets you gain some advantage over your next action, while Attack directly helps you resolve a conflict.

As such, after playing through an entire season of Mouse Guard, we came to the conclusion that you should "never not be Attacking" - it helps you achieve your goal directly, do it fast (which is always good - you don't want to take too long and be attacked more yourself), and there is no way to directly counter it. If the system even had one hard counter to Attack, this wouldn't be the case, but alas.

Old World of Darkness - Dex for everything

Old World of Darkness, even with its 20th anniversary editions, still uses Dexterity for everything. Rolling to-hit, whether it's with a gun, a thrown rock, a sword or with a fist, is a Dexterity roll with an appropriate skill. Block, Dodge, Parry? That's also Dexterity! Bite, Claw, Disarm, Kick, Sweep? All Dex! Initiative? Dex plus Wits. Moreover, after you roll to-hit, your successes carry over to become damage dice, so even if you are using a Sword that does Strength +2 damage, you can basically add half of your Dexterity on top of that. Since the system is also very minmaxy, if you are not starting the game with Dexterity 4 or 5, you are doing yourself a disservice!

Chronicles of Darkness - the king is mostly dead

With the release of the New World of Darkness, or later the Chronicles of Darkness, we finally have a system where Dexterity has been reigned in. In this system a lot of other stats have been given more usefulness. When you roll to-hit, you use Strength for melee or unarmed, and Dexterity only for ranged. Your to-hit roll is also your damage roll, so there is no weird carry-over. Your Defence is the lower of your Dexterity or Wits plus Athletics skill, so even if you don't have high Dex you can compensate. Initiative is Dexterity and Composure, while Speed is Strength and Dexterity. Your Stamina determines your hit points.

All in all, the many uses for Attributes allow you to build some very interesting characters without making them entirely useless - you can have a high Dexterity character that is hard to hit, but you'll probably be sacrificing Willpower or Stamina. You can have a character that doesn't have any Dexterity but can still brawl like a boss. Or you can have a tank that compensates for his lack of Dexterity, Wits or Strength by hitting the gym to get more Athletics to raise their Defence. And with the system being much more forgiving on the XP costs, you can easily tailor your build to match what is needed.

Conclusions

When designing an RPG system, you should avoid putting too much power into a single attribute or other gameplay element. The game is much more enjoyable when there are multiple "good solutions" rather than one "right solution".

Persona time slots and the three part structure of an RPG session

My group tends to experiment with different systems and techniques. One day we decided to try playing some Chronicles of Darkness, and our GM tried experimenting with a mechanic inspired by Persona - "time slots". The idea boiled down to this - every day was broken into a few time slots, and in each time slot our vampire characters could do one thing - go hunt for some blood, engage with their Touchstones, research something, etc. After one time slot where our PCs each did their own thing we would meet up and usually spend one time slot working out problems from last night, before the final time slot where we'd go out and have "the big set piece" of the session. We didn't realise it at the time, but we did find some pretty neat pacing structure for any session.

When we played through some Mouse Guard, the game came with its own pacing - the GM Turn and the Player Turn. In general, the session would start at the GM Turn, in which we'd be presented a challenge that we'd have to overcome - perhaps we'd be travelling between towns and dealing with a snowstorm, only to find out we needed to venture further into the blizzard to find some missing mice. During that set piece, every player would be accumulating "checks" for overcoming challenges with a hindrance. Finally, after that GM Turn was over, our characters would have some downtime to spend those checks to resupply, heal up and interact with NPCs in a more relaxed manner. In essence, it was a similar structure to what we have done in CoD, but in reverse - you'd first have the big set piece, and then you'd have the smaller stuff.

As it turned out, that pacing felt off - you'd usually start the game off with the action and then peter off at the end with things that didn't seem that meaningful in comparison. You might have the characters having a thousand-yard stare after fighting a band of weasels and expecting the players to have a follow-up. At least having this contrast allowed us to refine our approach.

So all in all, here is our time slot technique for any RPG. First, you start the session off with small, personal things. Let each player take initiative and roleplay some small thing they do during their morning as it were. Keep it light, don't do too many rolls, and keep it small - no more than two players in a scene ideally. After everyone has done their thing, let everyone meet up and make preparations. Discuss whatever needs discussing, figure out a plan of action, maybe do some small follow-up to something. Then, in the third part of the session have your big set piece - do battle, solve mysteries, engage with the world. After the climax of the session, when the big adventure is over, have a short moment for decompression and end the session soon after. Leave on a high note and give players time to formulate their plans for the next cycle.

This structure should help you transition from everyone settling at the table and still talking about things outside of the game, through the light things where people settle into their roles and get maximum focus right where the meat of the game is.

Too strong for fun, too good to be useful, and the paradox of power

RPGs are often an empowerment fantasy - a game where you take on roles of heroes or characters that are larger than life. You want to feel mighty, and often want to the "the strongest there ever was", or at least strive to. However, achieving that goal might be less fun than you think.

Our group has been playing Godbound for a long while. It's a game where you play high-power demigods (think higher-end comicbook heroes like Thor or Superman). A few months back we were excited to dig into a new expansion for that system called Lexicon of the Throne, which introduced a lot of new Words (superpower themes like "god of cities", or "god of war") to build your characters. One of the better Words out there is the Word of Dragons, letting you essentially play Smaug.

This is your PC

Now, a lot of Words in Godbound are pretty powerful, letting you go toe to toe with the biggest baddies around and reshape the world to your whim. However, there are two powers in the Word of Dragons that essentially break a part of the game - Breath of Death and Legion's Bane. The first power lets you decimate large armies with your dragon breath of choice, be it fire, shrapnel or liquid LSD. The second is pretty self-explanatory, you can kill large armies with ease, to the point you can wipe entire groups of mooks without even rolling. So once again, you are Smaug, your enemies are Lake-town:

And my breath - death!

Now, with such awesome power, it must be amazing to play as the Dragon, right? Well, not when it comes to actually using those two powers. Pretty much as soon as you take them, they become meaningless, and here is why.

Godbound operates on OSR rules, but condenses a lot of numbers down, so you don't do individual D&D-like hit points in damage, but entire hit dice. A typical Godbound can output about 4 hit dice of damage to an enemy, which usually has 15HD of health on the low end to 50 on the high end. Sometimes you can output as much as 10HD of damage to enemies that are particularly weak to your powers - a Godbound of Bow can kill armies, a Godbound of Artifice can kill constructs, etc. Those are some good numbers to pull.

Breath of Death can pull upwards of, on average, 90 damage if you're top level Godbound. And that's average - you could technically roll a perfect roll and do 180 damage, AoE, to mobs. There isn't really a grouping of mobs that could survive that hit. Again, you are Smaug, they are Lake-town.

(For those that know Godbound and wonder how this is possible - Breath of Death does 1d6 damage per level, triple to mobs, and is AoE. By rules presented in Godbound, AoE attacks against mobs do straight damage, so you are doing 1d6 x 3 straight damage per level.)

Legion's Bane is a much more direct power, pretty much boiling down to "if the mooks are weak enough, you automatically hit them and kill them outright, all of them". As my GM put it in one of our sessions - "you punch someone, and everyone in the three mile radius of the same socioeconomic status explode". To weaker mobs, you are One Punch Man, and the groups is one enemy for you.

Pretty much taking the Word of the Dragon makes you the designated "mob slayer" of the party. So this must be an awesome power, right? Well, sort of the opposite. Once you take the power to one punch kill mobs, mobs become pretty meaningless in the game, so putting them into the fight on the GM part is also rather pointless. Now the game turned from something like Dynasty Warrior, where you would have to cleave through enemies that might overwhelm you in the right combination, into One Punch Man, where the only meaning you can derive comes from reflecting on the power you have.

Now, that sort of reflection can be interesting, but the game has to be geared to allow for such self-analysis. Godbound doesn't have any explicit tools or prompts for things like that, but the genre it occupies (games of mythical heroes) might be implying that theme - you should be talking about morality, philosophy and so on in light of your god-like powers.

All in all, while having powers that let you specialise and be awesome at something, getting powers that make a part of the game so inconsequential they become meaningless might be detrimental overall. There are things out there that are too good to be useful in RPGs.