Regeneration rate

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Version 0.31: This article is up to date for the latest stable release of Dungeon Crawl Stone Soup.

Your regeneration rate is the speed at which your character recovers HP. It is affected by many things, almost all of which stack.

Base regeneration

Your base regeneration rate (BRR) is calculated as follows:

20 + MHP / 6

So for every 1 max HP, BRR increases by 1/6.

Modifiers

Total regeneration rate (TRR) is modified as follows, in this order:

Because the last two effects are applied last, they are not modified by any other factors, and can heal you even if you have -Regen.

Every turn (10 auts) you accumulate regeneration points equal to your TRR. When you accumulate 100 points, you heal 1 HP, and excess regeneration points are carried over to the next turn. If your action lasted longer/shorter than 10 aut, then the regeneration is scaled with time taken.

At 100 MHP, your BRR is 36.6. In order to get 50 BRR (regain 1 HP every 2 turns), you would need 180 MHP; for 100 BRR (heal every turn), you would need 480 MHP. Items or mutations that increase regeneration are far more efficient at raising your regeneration rate than stacking HP.

Examples

  • You have 30 MHP. Your BRR is 20 + 30/6 => 25. It will take 4 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 4 turns.
  • You have 180 MHP. Your BRR is 20 + 180/6 => 50. It will take 2 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 2 turns.
  • Same as above, except you're wearing a troll leather armour, which adds 80 to this rate. Your TRR is 50+80 => 130. You accumulate 100 regeneration points and heal by 1 HP every turn, with 30 left over. Your healing rate is 1 HP every turn, with an additional HP every 3.33 turns.

History

  • Prior to 0.30, base regeneration rate was MHP / 3 if under 60 max HP, and MHP / 6 + 10 if over it. Regeneration rate was lower at all max HP levels.
    • This made health regeneration significantly slower at lower levels.
  • Prior to 0.28, the Regen+ property gave a bonus regen of 100 (1.0 HP/turn) instead of 80.
  • Prior to 0.27, the Regen+ property gave a bonus regeneration rate of 40 (0.4 HP/turn) instead of 100.