Like more than one of them
25 games close to two or more of Grey Goo, Garry's Mod and Left 4 Dead 2
Natural Selection 2
Grey Goo, but a first-person shooter, and three times the hours
Liked · 85%Aliens · RTSAlso like Left 4 Dead 2
Space Engineers
Garry's Mod, but a survival crafting game, and in space
Liked · 89%Building · SandboxAlso like Grey Goo
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
Evolve Stage 2
Left 4 Dead 2, but free to play, and more divisive
Mixed · 70%FPS · Team-BasedAlso 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
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
Halo: The Master Chief Collection
Grey Goo, but a first-person shooter, and co-op
Loved · 92%Aliens · Sci-fiAlso like Garry's Mod and Left 4 Dead 2
PlanetSide 2
Garry's Mod, but free to play, and an MMO
Liked · 80%FPS · ShooterAlso like Left 4 Dead 2
Half-Life: Alyx
Grey Goo, but in VR, and single-player
Loved · 98%Aliens · Sci-fiAlso 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
Lambda Wars
Grey Goo, but free to play, and about survival
Loved · 92%RTS · AliensAlso like Left 4 Dead 2 and Garry's Mod
Aliens: Colonial Marines
Grey Goo, but a first-person shooter, and horror
Divisive · 62%Aliens · Sci-fiAlso like Left 4 Dead 2 and Garry's Mod
Splitgate
Garry's Mod, but free to play, and an arena shooter
Loved · 91%FPS · PhysicsAlso like Left 4 Dead 2
STAR WARS Battlefront II
Garry's Mod, but a third-person shooter, and a quarter of the hours
Liked · 88%FPS · ShooterAlso like Grey Goo and Left 4 Dead 2
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
The Planet Crafter
Grey Goo, but a survival crafting game, and single-player
Loved · 96%Base Building · SpaceAlso like Garry's Mod
Counter-Strike: Source
Garry's Mod, but team-based, and competitive
Loved · 96%FPS · ShooterAlso like Left 4 Dead 2
Space Hulk: Deathwing - Enhanced Edition
Garry's Mod, but a tenth of the hours, and more divisive
Mixed · 72%FPS · Online Co-OpAlso like Grey Goo and Left 4 Dead 2
Serious Sam 3: BFE
Garry's Mod, but a boomer shooter, and a tenth of the hours
Liked · 88%FPS · ComedyAlso like Left 4 Dead 2
More like Grey Goo
3 games closest to Grey Goo of your picks
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
More like Left 4 Dead 2
1 games closest to Left 4 Dead 2 of your picks
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.