Like more than one of them
29 games close to two or more of Spore: Creepy & Cute Parts Pack, Garry's Mod and Left 4 Dead 2
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · SandboxAlso like Spore
Scrap Mechanic
Garry's Mod, but about survival, and open world
Loved · 92%Building · PhysicsAlso like Spore
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 Spore and 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
Just Cause 2
Garry's Mod, but a third-person shooter, and a quarter of the hours
Loved · 91%Sandbox · PhysicsAlso like Spore
Starbound
Spore, but a survival crafting game, and five times the hours
Loved · 90%Space · SandboxAlso 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
Unturned
Left 4 Dead 2, but a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
Far Cry
Garry's Mod, but harder, and a fifth of the hours
Liked · 82%FPS · SandboxAlso like Spore and Left 4 Dead 2
Blockland
Garry's Mod, but a quarter of the hours, and more divisive
Mixed · 74%Building · SandboxAlso like Spore and Left 4 Dead 2
Totally Accurate Battlegrounds
Garry's Mod, but free to play, and a battle royale
Liked · 88%Physics · SandboxAlso like Left 4 Dead 2
Far Cry 4
Garry's Mod, but open world, and half the hours
Liked · 85%FPS · SandboxAlso like Left 4 Dead 2 and Spore
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Space Hulk: Deathwing
Spore, but a first-person shooter, and co-op
Divisive · 55%Aliens · Sci-fiAlso like Left 4 Dead 2 and Garry's Mod
The Planet Crafter
Spore, but with base building, and three times the hours
Loved · 96%Space · Open worldAlso like Garry's Mod
Kerbal Space Program
Garry's Mod, but a space sim, and in space
Loved · 96%Physics · SandboxAlso like Spore
Serious Sam 3: BFE
Garry's Mod, but a boomer shooter, and a tenth of the hours
Liked · 88%FPS · ComedyAlso like Spore and Left 4 Dead 2
Avatar: Frontiers of Pandora
Spore, but a first-person shooter, and twice the hours
Mixed · 78%Open world · Sci-fiAlso like Garry's Mod and Left 4 Dead 2
State of Decay 2
Left 4 Dead 2, but a base builder, and open world
Liked · 83%Zombies · SurvivalAlso like Spore
Saints Row: The Third
Garry's Mod, but a third-person shooter, and third-person
Loved · 96%Sandbox · ComedyAlso like Spore
PlanetSide 2
Garry's Mod, but free to play, and an MMO
Liked · 80%FPS · ShooterAlso like Left 4 Dead 2 and Spore
Empyrion - Galactic Survival
Garry's Mod, but a survival crafting game, and a space sim
Mixed · 78%Building · PhysicsAlso like Spore
Borderlands: The Pre-Sequel
Garry's Mod, but a looter shooter, and an action RPG
Mixed · 79%FPS · ComedyAlso like Spore and Left 4 Dead 2
More like Garry's Mod
1 games closest to Garry's Mod of your picks
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and a tenth of the hours
Loved · 97%Sandbox · 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.