Alien Swarm

On Linux, Steam Deck and Steam Machine

This game runs great under Proton after tweaks, per ProtonDB reports (37 reports). Valve rates it Playable on Steam Deck.

Valve rates it Playable on Steam Machine. Valve marks it SteamOS Compatible.

Proton tier: ProtonDB · Deck rating: Valve · Steam Machine, Steam Frame and SteamOS ratings: Valve · Compare 2,053 games · Every game Valve rated for Steam Machine