Like more than one of them
18 games close to two or more of Defense Grid 2, Garry's Mod and Euro Truck Simulator 2
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · SandboxAlso like Defense Grid 2
Scrap Mechanic
Garry's Mod, but about survival, and open world
Loved · 92%Building · PhysicsAlso like Defense Grid 2
Mindustry
Defense Grid 2, but an automation game, and even better loved
Loved · 96%Tower Defense · Base BuildingAlso like Garry's Mod
The Planet Crafter
Defense Grid 2, but a survival crafting game, and twice the hours
Loved · 96%Base Building · BuildingAlso 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
RoadCraft
Euro Truck Simulator 2, but not open world, and half the hours
Mixed · 75%Driving · TransportationAlso like Garry's Mod
Sanctum 2
Defense Grid 2, but a first-person shooter, and half the hours
Loved · 90%Tower Defense · AliensAlso like Garry's Mod
Core Keeper
Garry's Mod, but a survival crafting game, and pixel art
Loved · 93%Sandbox · BuildingAlso like Defense Grid 2
BeamNG.drive
Euro Truck Simulator 2, but physics-driven, and with destruction
Loved · 97%Driving · Automobile SimAlso 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
My Summer Car
Euro Truck Simulator 2, but a survival game, and first-person
Loved · 95%Automobile Sim · DrivingAlso like Garry's Mod
Abiotic Factor
Garry's Mod, but with crafting, and co-op
Loved · 96%Sandbox · Online Co-OpAlso like Defense Grid 2
Reassembly
Garry's Mod, but a shoot 'em up, and top-down
Loved · 94%Building · SandboxAlso like Defense Grid 2
7 Days to Die
Garry's Mod, but a base builder, and with zombies
Liked · 87%Building · SandboxAlso like Defense Grid 2
Construction-Simulator 2015
Euro Truck Simulator 2, but half the hours, and more divisive
Liked · 82%Automobile Sim · DrivingAlso like Garry's Mod
Starbound
Garry's Mod, but in space, and about survival
Loved · 90%Sandbox · BuildingAlso like Defense Grid 2
More like Defense Grid 2
7 games closest to Defense Grid 2 of your picks
The Riftbreaker
Defense Grid 2, but an action RPG, and about survival
Loved · 90%Tower Defense · Base Building
Creeper World 4
Defense Grid 2, but 3D, and physics-driven
Loved · 95%Tower Defense · Real Time Tactics
Stronghold Crusader: Definitive Edition
Defense Grid 2, but a city builder, and medieval
Loved · 92%Tower Defense · Real Time Tactics
Dyson Sphere Program
Defense Grid 2, but an automation game, and three times the hours
Loved · 97%Base Building · Space
Oxygen Not Included
Defense Grid 2, but a colony sim, and a survival game
Loved · 97%Base Building · 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
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.