aliens
exploration
monsters
bloody
gravity
minigames
death
military
spaceship
hand-to-hand combat
insanity
action-adventure
giant monsters
religion
steam
backtracking
achievements
undead
mutants
stacking
artificial intelligence
asteroids
survival horror
easter egg
over the shoulder
mad scientist
slow-motion
silent protagonist
cult
one-man army
darkness
boss fight
comic book
explosion
necromancy
xbox controller support for pc
single-player only
countdown timer
game critics awards
playstation trophies
alternate costumes
voice acting
human
polygonal 3d
shopping
upgradeable weapons
breaking the fourth wall
skeletons
ea app
original soundtrack release
unlockables
wasd movement
white noise
non-player character
extreme violence
profanity
pregnancy
hologram
fake in-game advertising
corpse
save point
sprinting mechanics
ragdoll physics
escort mission
checkpoints
saving the world
downloadable content
questing
auto-aim
melee
real-time combat
instant kill
secret area
infinite ammo
unbeatable enemies
betrayal
games with gold
difficulty level
nonexistent light source
scary children
female antagonist
jump scare moment
audio logs
inconvenient malfunction
vending machine interaction
rpg elements
mid-development ip split
arcade cabinet
no hud
villain
recurring boss
changing sides
been here before
harder versions of earlier levels
sadism
xbox one backwards compatibility
physics manipulation
item combination
suicide
tentacles
trophies
hallucination
games on demand
chessboard
high definition graphics
dynamic soundtrack
particle system
plot twist
boss assistance
quick time event
tech trees
fetch quests
linear gameplay
weapon modification
splash damage
ancient advanced civilization technology
ambient music
gore system
environmental kill
women in refrigerators syndrome
button mashing
poisoning
scripted events
new game plus
burning
telekinesis
guided by radio
workbench mechanics
strategic dismemberment
severed limbs
arrival by crash landing
innocent people die
context sensitive
secret identity
secret achievements
adapted to - anime
invented language
playing dead
swarming enemies
trilogy
two-handed weapons
hidden room
shooting range
persistent enemy
future sport
cliffhanger
crash landing
escape from exploding building
forced slow walking
alien languages
environment as weapons
tragic hero
ghostly manifestation
breaking through windows
no-reticle aiming
reversed controls
elevators that mask loading times
greatest hits
selective invincibility
weightlessness
novint falcon support
collective conciousness
necromorph
adapted to - movie
securom
interactive achievement awards 2009
game developers choice awards 2009
male protagonist
political