Like more than one of them
29 games close to two or more of Monstrum, 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 Monstrum and Garry's Mod
R.E.P.O.
Monstrum, but co-op, and twice the hours
Loved · 96%Horror · Action RoguelikeAlso like Garry's Mod and Left 4 Dead 2
GTFO
Left 4 Dead 2, but harder, and half the hours
Liked · 84%FPS · ZombiesAlso like Monstrum and Garry's Mod
Back 4 Blood
Left 4 Dead 2, but more divisive
Mixed · 69%Zombies · FPSAlso like Garry's Mod and Monstrum
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Monstrum and Garry's Mod
Content Warning
Monstrum, but funny, and co-op
Loved · 94%Action Roguelike · Procedural GenerationAlso like Garry's Mod and Left 4 Dead 2
DEVOUR
Monstrum, but built by hand, and not a roguelike
Loved · 90%Survival Horror · HorrorAlso like Left 4 Dead 2
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival HorrorAlso like Monstrum
PEAK
Garry's Mod, but a 3D platformer, and a survival game
Loved · 94%Physics · Online Co-OpAlso like Monstrum
PANICORE
Monstrum, but built by hand, and more divisive
Mixed · 79%Survival Horror · HorrorAlso like Left 4 Dead 2
Propagation VR
Left 4 Dead 2, but in VR, and a tenth of the hours
Loved · 94%Zombies · FPSAlso like Monstrum
Zombie Panic! Source
Left 4 Dead 2, but free to play, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Dying Light
Left 4 Dead 2, but open world, and with parkour
Loved · 95%Zombies · Survival HorrorAlso like Monstrum
Sons Of The Forest
Monstrum, but a survival crafting game, and three times the hours
Liked · 88%Survival Horror · SurvivalAlso like Garry's Mod and Left 4 Dead 2
The Blackout Club
Monstrum, but not a roguelike, and more divisive
Mixed · 77%Horror · Survival HorrorAlso like Left 4 Dead 2
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like Monstrum
BIGFOOT
Monstrum, but PvP, and with several endings
Liked · 82%Survival Horror · HorrorAlso like Left 4 Dead 2 and Garry's Mod
Backrooms: Escape Together
Monstrum, but realistic, and not a roguelike
Liked · 89%Survival Horror · HorrorAlso like Left 4 Dead 2
Inside the Backrooms
Monstrum, but a puzzle game, and built by hand
Liked · 80%Survival Horror · HorrorAlso like Left 4 Dead 2
Arizona Sunshine VR Legacy
Left 4 Dead 2, but co-op, and a quarter of the hours
Mixed · 79%Zombies · SurvivalAlso like Monstrum
MISERY
Monstrum, but open world, and post-apocalyptic
Liked · 84%Survival Horror · SurvivalAlso like Left 4 Dead 2
State of Decay 2
Left 4 Dead 2, but a base builder, and open world
Liked · 83%Zombies · SurvivalAlso like Monstrum
Metro 2033 Redux
Monstrum, but a first-person shooter, and story-rich
Loved · 92%Survival Horror · HorrorAlso like Left 4 Dead 2
The Walking Dead: Saints & Sinners
Monstrum, but with zombies, and gorier
Liked · 86%Survival Horror · VRAlso like Left 4 Dead 2
Friday the 13th: The Game
Monstrum, but third-person, and co-op
Liked · 80%Survival Horror · HorrorAlso like Left 4 Dead 2
More like Garry's Mod
1 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
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.