Psychophobia

Psychophobia is a mod for Doom II, which works with GZDoom or Zandronum.

The game features:
 * New campaign (three episodes).
 * A laboratory (A place where the player can summon monsters and fight them or make them fight each other).
 * New HUD.
 * New Monsters (around 84).
 * New Weapons (around 30).
 * New Textures.
 * Three different playable characters (Psycho from Blood, Caleb from Blood and Doomguy from Doom).
 * 3D Weapons version (a version where the weapons are completely 3D).