Like more than one of them
26 games close to two or more of I, Zombie, Garry's Mod and Left 4 Dead 2
GTFO
Left 4 Dead 2, but harder, and half the hours
Liked · 84%FPS · ZombiesAlso like Garry's Mod and I, Zombie
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Garry's Mod
Untitled Goose Game
I, Zombie, but co-op, and twice the hours
Loved · 96%Villain Protagonist · StealthAlso like Garry's Mod
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod and I, Zombie
Counter-Strike Nexon
Left 4 Dead 2, but free to play, and PvP
Mixed · 67%Zombies · FPSAlso like Garry's Mod
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
Far Cry 3
Garry's Mod, but open world, and a third of the hours
Liked · 88%FPS · SandboxAlso like I, Zombie and Left 4 Dead 2
Dying Light
Left 4 Dead 2, but open world, and with parkour
Loved · 95%Zombies · Survival HorrorAlso like I, Zombie
Far Cry 2
I, Zombie, but a first-person shooter, and six times the hours
Mixed · 76%Stealth · Level EditorAlso like Garry's Mod and Left 4 Dead 2
State of Decay 2
Left 4 Dead 2, but a base builder, and open world
Liked · 83%Zombies · SurvivalAlso like I, Zombie
Contagion
Left 4 Dead 2, but a third of the hours, and more divisive
Mixed · 73%Zombies · FPSAlso like I, Zombie
Zombie Panic! Source
Left 4 Dead 2, but half the hours, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like I, Zombie
Project Zomboid
Left 4 Dead 2, but a survival crafting game, and twice the hours
Loved · 94%Zombies · SurvivalAlso like I, Zombie
Of Guards And Thieves
I, Zombie, but free to play, and a top-down shooter
Liked · 85%Stealth · Top-DownAlso like Left 4 Dead 2
7 Days to Die
Garry's Mod, but a base builder, and about survival
Liked · 87%Building · SandboxAlso like Left 4 Dead 2 and I, Zombie
R.E.P.O.
Garry's Mod, but a survival horror game, and a quarter of the hours
Loved · 96%Physics · ComedyAlso like Left 4 Dead 2
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Garry's Mod
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
theHunter: Call of the Wild
Garry's Mod, but a hobby sim, and half the hours
Liked · 89%Sandbox · FPSAlso like I, Zombie
More like Garry's Mod
2 games closest to Garry's Mod of your picks
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · Physics
More like Left 4 Dead 2
2 games closest to Left 4 Dead 2 of your picks
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival Horror
How this list is made
Each game is measured against each of your picks the way a games-like list measures it: the Steam community tags, Steam genres and IGDB themes they share, each counting for more the fewer games carry it. A game's place is how alike it is to your picks together, as a share of each pick's best match, so one alike to two of them comes before one alike to just one. It must be close to at least one of them, as close as it would have to be on that game's own list.
None of your picks is on the list, nor a second release of one, nor a game of their own series. Up to 30 games are shown. Under each name, the kinds it shares with the pick it is closest to, and how it differs from that pick.