Garry's Mod: split-screen, player count and online co-op

Sandbox · Physics · Building

A physics sandbox with no set goals: spawn objects, build contraptions and play countless community-made game modes.

Who can play

SteamPrice on SteamGet it

A copy each

Groups host their own server or join public ones running community modes such as prop hunt, murder mysteries or free building.
What you play depends on the mods you load, so someone usually has to set things up first.
Some servers and modes need content from other games, such as Counter-Strike: Source.
Each player needs a copy.

96%

Overwhelmingly positive on Steam

“It brings back the silly glee of unbridled experimentation, intuitive learning and playful social interactions that most of us haven't experienced since childhood. For that, it's essential.”
88 · PC Gamer

From its Steam store page, where the publisher chooses the quotes.

15k playing on Steam, counted dailySteam Deck Playable

No split-screen. Online for up to 100 on PC. LAN play for up to 100 on PC. 96% positive of 1,100,000 Steam reviews.

Updated October 27, 2026

Does Garry's Mod have couch co-op?: No. Garry's Mod has no same-screen multiplayer; play it together online instead.
How many players can play Garry's Mod together?: Local co-op and versus on separate screens for up to 100 on PC. Online co-op and versus for up to 100 on PC.
Do you need two copies of Garry's Mod?: Yes. Each player online needs their own copy.
Can you play the Garry's Mod story together?: Yes: the main campaign is playable together on a local network and online.
What platforms is Garry's Mod on?: PC.; One of 3,994 co-op games
Does Garry's Mod work on Steam Deck?: Yes, with some extra steps: Steam rates it Playable for Steam Deck.
Is Garry's Mod free?: No, it's a paid game.

Besiege
8·8
PC
PS5
+2
Online for 8, same room for 8. On PC, PS5, Xbox and Switch. Overwhelmingly positive: 95% of 48,000 Steam reviews.
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PC
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PC
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PC
PS5
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