Like more than one of them
12 games close to two or more of The Citadel, Euro Truck Simulator 2 and Garry's Mod
BeamNG.drive
Euro Truck Simulator 2, but physics-driven, and with destruction
Loved · 97%Driving · Automobile SimAlso like Garry's Mod
Serious Sam 2
Garry's Mod, but a boomer shooter, and a tenth of the hours
Loved · 90%FPS · ComedyAlso like The Citadel
CULTIC
The Citadel, but horror, and even better loved
Loved · 97%Boomer Shooter · Old SchoolAlso 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
Serious Sam HD: The First Encounter
Garry's Mod, but a boomer shooter, and gorier
Loved · 93%FPS · ComedyAlso like The Citadel
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
Flashing Lights
Garry's Mod, but a job sim, and a fifth of the hours
Mixed · 79%Physics · SandboxAlso like Euro Truck Simulator 2
Bulletstorm: Full Clip Edition
The Citadel, but funny
Liked · 89%FPS · Boomer ShooterAlso like Garry's Mod
Drive Beyond Horizons
Euro Truck Simulator 2, but about survival, 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
More like The Citadel
11 games closest to The Citadel of your picks
More like Euro Truck Simulator 2
1 games closest to Euro Truck Simulator 2 of your picks
Motor Town: Behind The Wheel
Much the same as Euro Truck Simulator 2
Loved · 94%Transportation · Driving
More like Garry's Mod
6 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
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · Physics
Just Cause 2
Garry's Mod, but a third-person shooter, and a quarter of the hours
Loved · 91%Sandbox · Physics
Hot Dogs, Horseshoes & Hand Grenades
Garry's Mod, but in VR, and single-player
Loved · 97%Physics · Sandbox
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.