Single-player games like illumination
Below are 9 single-player Steam games similar to illumination, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like illumination page.
Ranked picks
- 1

Lade's Sandbox
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
A voxel-based sandbox game
- 2

Metro Mover
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Drive metro trains to move the people of Blueton in this voxel-style sim-arcade game.
- 3

Voxel Tycoon
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Voxel Tycoon — a management sim set in the infinite voxel world. Mine resources and process them into goods on your custom factories. Set up supply chains and passenger routes with a huge fleet of trains, trucks, and buses, and turn small towns into prosperous megacities with a thriving economy!
- 4

Train Train Train
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Train Train Train is a game about managing train networks in various smol cute 3d worlds. Lay down tracks, upgrade intersections and don't bonk the sheep. Do not be deceived, this game can be as tough as it is cute.
- 5

Rolling Line
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Build your own model railway tracks and scenery or explore pre-made maps, including 1000s of player-made maps and mods on the Steam Workshop! Play solo and in multiplayer, both in virtual reality and on PC!
- 6

Hmmsim Metro
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Line 1, the most complicated subway in Seoul, is now coming in PC version. You can feel high immersion with the graphics that realize the actual Seoul scenery, the train driving sound, and the realistic train driving system. Experience the operation of the Seoul subway!
- 7

Derail Valley
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Drive massive trains and build your career in a vast open railway network. For both PC and VR.
- 8

Wrench
Single-player alternative to illumination — playable solo, no multiplayer required. Shares Indie and Simulation with illumination.
Wrench is a mechanic simulator where players prepare and maintain race cars. The parts in Wrench are the most detailed of any game in the genre. Extreme attention has been paid to even the smallest components, including fasteners which are accurate to the thread pitch and install torque.
- 9

VR-Kanojo
Single-player alternative to illumination — playable solo, no multiplayer required.
From the producer of "VR Kanojo" comes an even cuter VR romance sim. Spend zero-distance, nose-touching moments with heroine Sakura Yuuhi, brought to life by real-time full-lighting. Look-and-touch controls, multiple scenes and fan-picked outfits let you craft a private world. Beginner-friendly.