Like more than one of them
23 games close to two or more of Out of Space, 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 and Out of Space
Wobbly Life
Out of Space, but a life sim, and five times the hours
Loved · 97%Split Screen · 4 Player LocalAlso like Garry's Mod
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
Amazing Frog?
Out of Space, but open world, and three times the hours
Loved · 94%4 Player Local · Split ScreenAlso like Garry's Mod
The Escapists 2
Out of Space, but a stealth game, and pixel art
Loved · 91%Local Co-Op · Split ScreenAlso like Garry's Mod
Human Fall Flat
Out of Space, but a puzzle platformer, and even better loved
Loved · 95%Local Co-Op · Co-opAlso like Garry's Mod
Who's Your Daddy?!
Out of Space, but first-person, and darkly funny
Liked · 80%Split Screen · Online Co-OpAlso like Garry's Mod
Counter-Strike Nexon
Left 4 Dead 2, but free to play, and PvP
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Evolve Stage 2
Left 4 Dead 2, but sci-fi, and more divisive
Mixed · 70%FPS · Team-BasedAlso like Garry's Mod
Serious Sam Classic: The First Encounter
Out of Space, but a boomer shooter, and gorier
Loved · 96%Local Co-Op · Split ScreenAlso like Garry's Mod and Left 4 Dead 2
Space Hulk: Deathwing - Enhanced Edition
Out of Space, but a first-person shooter
Mixed · 72%Space · Co-opAlso like Garry's Mod and 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
Zombie Panic! Source
Left 4 Dead 2, but half the hours, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
Resident Evil 6
Left 4 Dead 2, but split-screen
Mixed · 77%Zombies · Online Co-OpAlso like Out of Space
PlanetSide 2
Garry's Mod, but free to play, and an MMO
Liked · 80%FPS · ShooterAlso like Left 4 Dead 2 and Out of Space
STAR WARS Battlefront II
Garry's Mod, but a third-person shooter, and a quarter of the hours
Liked · 88%FPS · ShooterAlso like Out of Space and Left 4 Dead 2
Serious Sam 2
Garry's Mod, but a boomer shooter, and a tenth of the hours
Loved · 90%FPS · ComedyAlso like Left 4 Dead 2
Call of Duty: Black Ops II
Left 4 Dead 2, but a quarter of the hours
Liked · 86%FPS · Team-BasedAlso like Garry's Mod
More like Out of Space
3 games closest to Out of Space of your picks
HELLDIVERS
Out of Space, but a twin-stick shooter, and three times the hours
Loved · 90%4 Player Local · Local Co-Op
More like Garry's Mod
3 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
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.