Like more than one of them
22 games close to two or more of Ultimate Zombie Defense, Euro Truck Simulator 2 and Garry's Mod
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · PhysicsAlso like Ultimate Zombie Defense
Left 4 Dead 2
Ultimate Zombie Defense, but five times the hours, and even better loved
Loved · 98%Zombies · Online Co-OpAlso like Garry's Mod
Left 4 Dead
Ultimate Zombie Defense, but horror, and even better loved
Loved · 96%Zombies · Online Co-OpAlso like Garry's Mod
7 Days to Die
Ultimate Zombie Defense, but a survival crafting game, and 17 times the hours
Liked · 87%Zombies · Tower DefenseAlso like Garry's Mod
Killing Floor
Ultimate Zombie Defense, but horror, and six times the hours
Loved · 95%Zombies · Online Co-OpAlso like Garry's Mod
Killing Floor 2
Ultimate Zombie Defense, but post-apocalyptic, and seven times the hours
Liked · 88%Zombies · Online Co-OpAlso like Garry's Mod
BeamNG.drive
Euro Truck Simulator 2, but physics-driven, and with destruction
Loved · 97%Driving · Automobile SimAlso like Garry's Mod
Construction Simulator
Euro Truck Simulator 2, but co-op, and a third of the hours
Liked · 80%Transportation · DrivingAlso like Garry's Mod
No More Room in Hell
Ultimate Zombie Defense, but free to play, and three times the hours
Loved · 90%Zombies · Online Co-OpAlso like Garry's Mod
Railroads Online
Euro Truck Simulator 2, but co-op, and more divisive
Mixed · 75%Automobile Sim · DrivingAlso like Garry's Mod
Drive Beyond Horizons
Euro Truck Simulator 2, but a survival game, and a third of the hours
Mixed · 78%Driving · Automobile SimAlso like Garry's Mod
RoadCraft
Euro Truck Simulator 2, but not open world, and half the hours
Mixed · 75%Driving · TransportationAlso like Garry's Mod
DayZ
Garry's Mod, but a survival game, and with zombies
Mixed · 78%Sandbox · Online Co-OpAlso like Ultimate Zombie Defense
My Summer Car
Euro Truck Simulator 2, but a survival game, and first-person
Loved · 95%Automobile Sim · DrivingAlso like Garry's Mod
SCP: Secret Laboratory
Ultimate Zombie Defense, but free to play, and first-person
Loved · 91%Online Co-Op · Co-opAlso 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 Ultimate Zombie Defense
Sons Of The Forest
Garry's Mod, but a survival horror game, and with crafting
Liked · 88%Building · SandboxAlso like Ultimate Zombie Defense
Core Keeper
Garry's Mod, but pixel art, and open world
Loved · 93%Sandbox · BuildingAlso like Ultimate Zombie Defense
MudRunner
Garry's Mod, but a driving sim, and a quarter of the hours
Loved · 92%Physics · SandboxAlso like Euro Truck Simulator 2
Bloons TD5
Ultimate Zombie Defense, but funny, and four times the hours
Loved · 95%Tower Defense · Online Co-OpAlso like Garry's Mod
Valheim
Garry's Mod, but about survival, and with crafting
Loved · 94%Building · SandboxAlso like Ultimate Zombie Defense
Farming Simulator 15
Euro Truck Simulator 2, but co-op
Loved · 93%Automobile Sim · DrivingAlso like Garry's Mod
More like Ultimate Zombie Defense
3 games closest to Ultimate Zombie Defense of your picks
Yet Another Zombie Defense
Ultimate Zombie Defense, but half the hours
Liked · 87%Zombies · Tower Defense
SAS: Zombie Assault 4
Ultimate Zombie Defense, but 2D, and twice the hours
Liked · 86%Zombies · Top-Down Shooter
Bloons TD 6
Ultimate Zombie Defense, but 3D, and eight times the hours
Loved · 97%Tower Defense · Online Co-Op
More like Garry's Mod
5 games closest to Garry's Mod of your picks
Totally Accurate Battlegrounds
Garry's Mod, but free to play, and a battle royale
Liked · 88%Physics · Sandbox
RV There Yet?
Garry's Mod, but a driving sim, and a tenth of the hours
Loved · 90%Physics · Online Co-Op
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.