Like more than one of them
25 games close to two or more of Unnamed Space Idle, 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
The Planet Crafter
Unnamed Space Idle, but a survival crafting game, and a base builder
Loved · 96%Space · AutomationAlso 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
Halo: The Master Chief Collection
Garry's Mod, but story-rich, and a third of the hours
Loved · 92%FPS · ShooterAlso like Left 4 Dead 2
Evolve Stage 2
Left 4 Dead 2, but free to play, and sci-fi
Mixed · 70%FPS · Team-BasedAlso like Garry's Mod
STAR WARS Battlefront II
Garry's Mod, but a third-person shooter, and a quarter of the hours
Liked · 88%FPS · ShooterAlso like 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
Aliens: Colonial Marines
Unnamed Space Idle, but a first-person shooter, and a tenth of the hours
Divisive · 62%Aliens · SpaceAlso like Left 4 Dead 2 and Garry's Mod
Space Hulk: Deathwing - Enhanced Edition
Garry's Mod, but a tenth of the hours, and more divisive
Mixed · 72%FPS · Online Co-OpAlso like Left 4 Dead 2 and Unnamed Space Idle
Natural Selection 2
Unnamed Space Idle, but a real-time strategy game, and a fifth of the hours
Liked · 85%Aliens · SpaceAlso like Left 4 Dead 2
Call of Duty: Black Ops II
Left 4 Dead 2, but a quarter of the hours, and more divisive
Liked · 86%FPS · Team-BasedAlso 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
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
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
Serious Sam HD: The First Encounter
Garry's Mod, but a boomer shooter, and gorier
Loved · 93%FPS · ComedyAlso like Left 4 Dead 2
Half-Life 2
Garry's Mod, but sci-fi, and a quarter of the hours
Loved · 98%FPS · PhysicsAlso like Left 4 Dead 2
Outpath
Unnamed Space Idle, but with base building, and with crafting
Loved · 93%Incremental · AutomationAlso like Garry's Mod
Dead Space 2
Left 4 Dead 2, but third-person, and story-rich
Loved · 94%Survival Horror · SurvivalAlso like Unnamed Space Idle
Unturned
Left 4 Dead 2, but a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
Borderlands: The Pre-Sequel
Garry's Mod, but a looter shooter, and an action RPG
Mixed · 79%FPS · ComedyAlso like Left 4 Dead 2
More like Unnamed Space Idle
1 games closest to Unnamed Space Idle of your picks
Cookie Clicker
Unnamed Space Idle, but horror, and a third of the hours
Loved · 96%Idler · Incremental
More like Garry's Mod
3 games closest to Garry's Mod of your picks
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · Sandbox
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.