Like more than one of them
25 games close to two or more of I'm on Observation Duty, Garry's Mod and Left 4 Dead 2
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival HorrorAlso like I'm on Observation Duty
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
Inside the Backrooms
I'm on Observation Duty, but co-op, and more divisive
Liked · 80%Psychological Horror · HorrorAlso like Left 4 Dead 2
Backrooms: Escape Together
I'm on Observation Duty, but first-person, and co-op
Liked · 89%Psychological Horror · HorrorAlso like Left 4 Dead 2
Counter-Strike Nexon
Left 4 Dead 2, but free to play, and PvP
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Content Warning
Garry's Mod, but a horror game, and a tenth of the hours
Loved · 94%Physics · Online Co-OpAlso like Left 4 Dead 2
BIGFOOT
Left 4 Dead 2, but PvP, and a third of the hours
Liked · 82%Survival Horror · FPSAlso like Garry's Mod
Resident Evil Village
Left 4 Dead 2, but solo, and in VR
Loved · 96%Zombies · Survival HorrorAlso like I'm on Observation Duty
Zombie Panic! Source
Left 4 Dead 2, but half the hours, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
Deceit
Left 4 Dead 2, but a social deduction game, and your choices matter
Mixed · 79%Zombies · FPSAlso like Garry's Mod
Abyss School
I'm on Observation Duty, but 3D, and darker
Loved · 92%Hidden Object · HorrorAlso like Left 4 Dead 2
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
Ravenfield
Garry's Mod, but military, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
Blood and Bacon
Left 4 Dead 2, but funny, and a fifth of the hours
Loved · 95%FPS · ShooterAlso like I'm on Observation Duty
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Garry's Mod
35MM
I'm on Observation Duty, but a first-person shooter, and a walking sim
Mixed · 71%Hidden Object · Psychological HorrorAlso like Left 4 Dead 2
Escape the Backrooms
I'm on Observation Duty, but first-person, and three times the hours
Loved · 90%Psychological Horror · HorrorAlso like Left 4 Dead 2
Bodycam
Garry's Mod, but a tenth of the hours, and more divisive
Liked · 81%FPS · PhysicsAlso like Left 4 Dead 2
How to Fish
Garry's Mod, but with fishing, and a tenth of the hours
Loved · 95%Physics · Online Co-OpAlso like Left 4 Dead 2
More like Garry's Mod
4 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
1 games closest to Left 4 Dead 2 of your picks
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · Survival
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.