Damage Types in RPGs and Roguelikes

For my latest RPG attempt, I’ve been pondering what sorts of damage types to include, and how many.

From other games, I remember quite a long list:

  • fire
  • ice/cold
  • lightning
  • poison
  • acid/corrosion/disintegration
  • confusion/chaos
  • slow/paralyze/freeze
  • sound
  • light/dark
  • nether
  • fear/terror

What would you do? Use all? Only a subset? And if a subset, what would you use?