Me and Pina Colada playing our 2nd game ever of Alien Swarm Reactive Drop. Its free to play on Steam and lots of fun. Online Co-Op , Deathmatch etc for up to 8 people now. Gets really good reviews. br br Youtube: br br br Steam Link: br br br Twitter: br br br Twitch: br br br Alien Swarm Reactive Drop mod gameplay release date trailer plus review. br Alien Swarm Gameplay 1080p, br alien swarm guide, br alien swarm first impressions, br PC Gaming.