Like more than one of them
9 games close to two or more of Unnamed Space Idle, Euro Truck Simulator 2 and 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
BeamNG.drive
Euro Truck Simulator 2, but physics-driven, and with destruction
Loved · 97%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
Construction Simulator
Euro Truck Simulator 2, but co-op, and a third of the hours
Liked · 80%Transportation · DrivingAlso like Garry's Mod
Outpath
Unnamed Space Idle, but with base building, and with crafting
Loved · 93%Incremental · AutomationAlso like Garry's Mod
Automation - The Car Company Tycoon Game
Garry's Mod, but a driving sim, and a management game
Loved · 94%Building · SandboxAlso like Euro Truck Simulator 2
My Summer Car
Euro Truck Simulator 2, but a survival game, and first-person
Loved · 95%Automobile Sim · DrivingAlso 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
Junkyard Simulator
Euro Truck Simulator 2, but a tenth of the hours, and more divisive
Mixed · 65%Automobile Sim · TransportationAlso like Garry's Mod
More like Unnamed Space Idle
9 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
How To Grow a Black Hole
Unnamed Space Idle, but a tenth of the hours, and more divisive
Mixed · 68%Idler · Incremental
More like Euro Truck Simulator 2
4 games closest to Euro Truck Simulator 2 of your picks
Star Trucker
Euro Truck Simulator 2, but a space sim, and a fifth of the hours
Mixed · 78%Transportation · Driving
Motor Town: Behind The Wheel
Much the same as Euro Truck Simulator 2
Loved · 94%Transportation · Driving
More like Garry's Mod
8 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
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and a tenth of the hours
Loved · 97%Sandbox · Physics
Stormworks: Build and Rescue
Garry's Mod, but with base building, and at sea
Loved · 91%Physics · Building
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.