Garry's Mod
2006CasualIndieSimulation
LAN support means the game can run over a local network without routing through a matchmaking service. It's become rarer, which makes it worth searching for deliberately — and it's the only reliable option for group gaming somewhere with poor internet.
Ranked by how often each game turns up in the libraries people have compared here — a different signal from Steam's own charts, since it reflects what groups of friends actually own.
Sign in with Steam, add up to ten friends, and filter straight to the lan games your whole group already has — no buying required.
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