engine: Monolith LithTech

• atmospheric/environmental effects
  • clouds (moving, rotating)
  • wind: cable hooks, curtains/drapes, streamers, trees
  • other: explosions, fire, shaking, smoke (fire), sparks (hacking, flares, impacts: alien claws, knives), steam (dead aliens, pipes); see particle effects
• lighting: dynamic, colored; coronas, flickering; fire, flares, flashlights
• particle effects: blood spray, debris, fire, gas, glass shards, smoke, sparks, steam
• physics
  • gravity: player, NPCs
  • friction, inertia, momentum
• reflection: see environmental texture mapping
• shadows: vertical angle adjustment, ovalular masks; animals, anything pickupable
• skeletal animation: yes
• texture: 16-/32-bit depth
  • filtering: bi-/trilinear
  • mapping: environmental (desks, glass, walls), mip
  • decals: blood, bullet holes, guts
• transparency: clouds, fire, glass, light beams (laser, sun), pheremone auras, smoke, steam, water
• other: lens flare

player character

• character: alien, human, or predator; facial animation, feet jump-land impact dust, footsteps (dirt, water), grows (alien)
• moves: pickup object, hit/kick, run, walk
• view: 1st-person (3rd-person with cheats)
  • pan: keyboard/mouse

level/world design

• location: other planets
• cutscenes: yes
• level editor: no
• environmental interaction
  • dropable:
  • pickupable:
  • other:
• traps/hazards: acid, electricity, fire, gas (plants), steam

other

• enemies/animals: aliens, humans, predators
• inventory: weapons/ammo
• sound: stereo