Experience

Version 0.10: This article may not be up to date for the latest stable release of Crawl.

This page is about the character trait. For the card, see the article Experience card. For the potion, see the article Potion of experience.

Experience is a rating of how much your character has learned in their quest, particularly their ability to survive the Dungeon's many hazards. For some species, it is also a rating of your character's maturity. Like most video game RPGs, experience is measured in experience points (or XP) and awarded for defeating monsters, with more difficult monsters being worth more XP.

In Crawl, XP rewards your character in two ways: raising your experience level, and giving you skill experience.

Gaining Experience Points

Each monster is assigned a value in experience points. Normally, you gain that many experience points when you defeat the monster.

If you have an ally aiding you, however, the XP may be split between the two of you. If you do none of the work and allow the ally to kill the monster, you get a 50% share. If your ally does nothing and you kill a monster, you receive 100%. If you worked together to defeat the monster, the XP will be split to reflect the amount of damage you each dealt. Giving allies XP is a waste for summoned creatures which disappear or undead minions that can never be healed, but can result in very powerful allies for a priest of Beogh.

Experience Level

When you have gained enough XP, your character rises to the next experience level and receives various benefits. Leveling up increases the following:

• Total hit points.
• Total magic points.
• Total number of spells that can be memorised.
• The maximum spell level that can be learned (no character can memorize a spell whose level is higher than their own).
• Stats. Every three levels, the character may add 1 point to their strength, intelligence, or dexterity, as they choose. Most races get extra stat bonuses (determined by the game) every few levels, in addition.
• Magic resistance. Characters gain points of magic resistance at each level, the number depending on their race.
• Characters of certain races will gain special abilities (see Maturity below).

Every character starts at experience level 1 with no XP, reflecting a total lack of knowledge of the Dungeon. The maximum level is 27, but characters who have reached this can still use XP to improve their final score and their skills.

Note that draining attacks reduce your XP, and can reduce your skills or even reduce you to an earlier experience level. This will also affect abilities gained by "maturity", in straightforward fashion.

Different species require proportionally more or less experience to gain experience levels, as shown in the Dungeon Crawl Stone Soup 0.12.0 in-game documentation:

Hu	Ce	Dg	Ds	Dr	DD	DE	HE	SE	Fe	Gh	Ha	Ko	Mf	Mi	Mu	Na	Op	Og	HO	Sp	Te	Tr	Vp
1	-1	-2	-1	-1	-1	-1	-1	0	-1	0	1	1	0	-1	-1	0	0	0	0	-1	0	-1	-1

Note that a higher score translates into faster levelings; Humans, Halflings and Kobolds level the fastest (with an experience aptitude of 1).

Experience Required

Level	XP	Diff.	Increase in diff.
1	0	0	0
2	10	10	10
3	30	20	10
4	70	40	20
5	140	70	30
6	270	130	60
7	520	250	120
8	1010	490	240
9	1980	970	480
10	3910	1930	960
11	7760	3850	1920
12	15450	7690	3840
13	29000	13550	5860
14	48500	19500	5950
15	74000	25500	6000
16	105500	31500	6000
17	143000	37500	6000
18	186500	43500	6000
19	236000	49500	6000
20	291500	55500	6000
21	353000	61500	6000
22	420500	67500	6000
23	494000	73500	6000
24	573500	79500	6000
25	659000	85500	6000
26	750500	91500	6000
27	848000	97500	6000

These figures are multiplied by racial modifiers, above, which should be treated as percentages (i.e., human = 100%).

Maturity

Certain species 'mature' as they gain experience, gaining special bonuses or abilities.

• Draconians begin as juveniles, and become adults at level 7. At 14, they gain the ability to fly.
• Felids, Nagas, Ogres, Draconians, and Trolls get tougher scales/skin/fur (improved AC) at certain experience levels.
• Felids furthermore gain an extra life every three levels, but can hold no more than three at once. After losing one of those three, they can get one of the "overflow" lives upon gaining a level which would not otherwise have awarded an extra life. Note that each death also costs them an experience level, with associated skills.
• Demonspawn acquire more of their demonic ancestry as they level up. This comes in the form of mutations, and Demonspawn can acquire special mutations unavailable to other species.
• Tengu gain the ability to fly at level 5. At 15, they may fly continuously.
• Mummies gain a bonus to Necromancy at levels 13 and 26.
• Vampires may transform into bats at level 3, and can create potions of blood from corpses at level 6.
• Deep Dwarves upgrade their Passive Mapping ability to rank 2 at level 9, rank 3 at 18, and gain life protection (rN+) at level 14.

Skill Experience

On top of contributing to your character level, any XP gain also contributes to your skill levels. There are two methods available to control distribution: Standard or Manual. In standard mode, every time you gain experience, it is distributed between all the skills which you have used lately, with the most commonly used ones getting proportionally bigger shares. On top of that, you can set skills to "Disabled" (they receive no XP), "Enabled" (no change), or "Focused" (the skill gets a guaranteed share of the XP on top of what it receives through practice).

Alternatively, there is Manual mode. Here, XP is divided into equal shares between all skills. Again, you can set skills to be Disabled for no growth or Focused for double ordinary growth.

The maximum level for each skill is 27, but many skills suffer from diminishing returns, so it may not be worth raising your skill to its maximum allowable level.

History

In version 0.9, new skills (before they reached level 1) had to be actively used (casting a spell, hitting something, etc.) to start applying experience to it. Once the skill had reached 1.0, it could thenceforth be disabled or focused manually.

In version 0.8 and earlier, skill experience was dumped into an "experience pool" until assigned to a skill. This was done in small increments by repeatedly performing actions relating to the skill. This led to the custom of "victory dancing" after fights to guarantee the XP went to the desired skill. Skills could be "disabled" to reduce their growth to 25% of normal.