Release Date
2010-07-19
Developer
Valve
Publisher
Valve
Metacritic
77
Reviews
298
Time to beat
3.5h
Tags
액션
무료 플레이
Free to Play
Co-op
Action
Multiplayer
Online Co-Op
Aliens
Shooter
Sci-fi
Top-Down
Top-Down Shooter
Survival
PvE
Class-Based
Third Person
Team-Based
Languages
영어
Screenshots
