Like more than one of them
18 games close to two or more of Factory Town, Garry's Mod and Left 4 Dead 2
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · PhysicsAlso like Factory Town
Prison Architect
Factory Town, but top-down, and 2D
Liked · 85%Colony Sim · Base BuildingAlso like Garry's Mod
Satisfactory
Factory Town, but open world, and three times the hours
Loved · 97%Automation · Base BuildingAlso like Garry's Mod
Mindustry
Factory Town, but a tower defense game, and co-op
Loved · 96%Automation · Base BuildingAlso like Garry's Mod
The Planet Crafter
Factory Town, but a survival crafting game, and co-op
Loved · 96%Automation · Base BuildingAlso 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
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso 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
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
Subsistence
Garry's Mod, but a base builder, and about survival
Mixed · 72%Building · SandboxAlso like Left 4 Dead 2
Sons Of The Forest
Garry's Mod, but a survival horror game, and open world
Liked · 88%Building · SandboxAlso 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
Green Hell
Garry's Mod, but about survival, and a third of the hours
Liked · 85%Online Co-Op · SandboxAlso like Left 4 Dead 2
7 Days to Die
Garry's Mod, but with zombies, and open world
Liked · 87%Building · SandboxAlso like Left 4 Dead 2
More like Factory Town
6 games closest to Factory Town of your picks
Factorio
Factory Town, but about survival, and five times the hours
Loved · 98%Automation · Base Building
Colony Survival
Factory Town, but a tower defense game, and about survival
Loved · 92%Colony Sim · Base Building
Oxygen Not Included
Factory Town, but a survival game, and twice the hours
Loved · 97%Colony Sim · Base Building
Dwarf Fortress
Factory Town, but about survival, and even better loved
Loved · 95%Colony Sim · Base Building
More like Garry's Mod
5 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
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.