Synergy is a Free to Play, Co-op, Action PC game, developed by Synergy Team, available on Steam and published by .
Synergy enables you to play through the Half-Life 2 series and many other singleplayer Source Mods cooperatively with friends.
Click on any of these tags to find more games like Synergy
Free to Play Co-op Action Mod Multiplayer FPS Online Co-Op Shooter First-Person Sci-fi Zombies Adventure Funny Open World Moddable Survival Horror Great Soundtrack Atmospheric VR