| DMG_ACID | toxic chemicals or acid burns |
| DMG_AIRBOAT | Hit by the airboat's gun |
| DMG_ALWAYSGIB | with this bit OR'd in, any damage type can be made to gib victims upon death. |
| DMG_BLAST | explosive blast damage |
| DMG_BLAST_SURFACE | A blast on the surface of water that cannot harm things underwater |
| DMG_BUCKSHOT | not quite a bullet. Little, rounder, different. |
| DMG_BULLET | shot |
| DMG_BURN | heat burned |
| DMG_CLUB | crowbar, punch, headbutt |
| DMG_CRIT | TF2 crits and minicrits |
| DMG_CRUSH | |
| DMG_DIRECT | |
| DMG_DISSOLVE | Dissolving! |
| DMG_DROWN | Drowning |
| DMG_DROWNRECOVER | drowning recovery |
| DMG_ENERGYBEAM | laser or other high energy beam |
| DMG_FALL | fell too far |
| DMG_GENERIC | generic damage was done |
| DMG_HALF_FALLOFF | 50% damage falloff |
| DMG_IGNITE | Ignite victim |
| DMG_NERVEGAS | nerve toxins, very bad |
| DMG_NEVERGIB | with this bit OR'd in, no damage type will be able to gib victims upon death |
| DMG_NOCLOSEDISTANCEMOD | Don't do damage falloff too close |
| DMG_PARALYZE | slows affected creature down |
| DMG_PHYSGUN | Hit by manipulator. Usually doesn't do any damage. |
| DMG_PLASMA | Shot by Cremator |
| DMG_POISON | blood poisoning - heals over time like drowning damage |
| DMG_PREVENT_PHYSICS_FORCE | Prevent a physics force |
| DMG_RADIATION | radiation exposure |
| DMG_RADIUS_MAX | No damage falloff |
| DMG_REMOVENORAGDOLL | |
| DMG_SHOCK | electric shock |
| DMG_SLASH | cut, clawed, stabbed |
| DMG_SLOWBURN | in an oven |
| DMG_SONIC | sound pulse shockwave |
| DMG_USE_HITLOCATIONS | Do hit location damage (Like the sniperrifle and ambassador) |
| DMG_USEDISTANCEMOD | Do damage falloff |
| DMG_VEHICLE | hit by a vehicle |