Console: | PC |
TV Standard: | Region Not Set |
Release Date: | 2005-09-01 |
Players: | 2 |
Co-op: | Yes |
ESRB: | Not Rated |
Type: | Action, Shooter |
Synergy is a simple Half-Life 2 Mod that enables you to play through the Half-Life 2 series and many other 3rd-party campaigns cooperatively with friends.