Single-player games like Crash Test Billy
Below are 11 single-player Steam games similar to Crash Test Billy, 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 Crash Test Billy page.
Ranked picks
- 1

Fantasy Car : Car Design Simulator 造车模拟器
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Simulation with Crash Test Billy.
Design the car completely by yourself! Performance and appearance are all Designed by yourself! Drive the car all designed by yourself to conquer all the tracks~
- 2

Poland Car Simulator
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Simulation with Crash Test Billy.
Explore a map inspired by Poland. You can race and freely drive cars across the entire map, which includes several cities, a desert, mountains, and lakes. There are also several airplane models available, as well as a helicopter and a spaceship.
- 3

Kyle Simulator
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Simulation with Crash Test Billy.
Welcome to Kyle Simulator, where you can experience a realistic simulation of an everyday Kyle. Your goals are defined. Mutant Energy & Walls. You know what to do.
- 4

The Enjenir: The Engineering Physics Building Simulator
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Simulation with Crash Test Billy.
Put your engineering and problem solving skills to the test in this sandbox physics building game! Enjoy the freedom of completely gridless 3D sandbox building combined with hilarious ragdoll third person controls, offering a truly unique and hilarious "Enjeniring" experience!
- 5

Glider Simulator
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Simulation with Crash Test Billy.
A glider simulator based on VR technology, with strong 360 degree immersion and 12 scenes including canyons and islands for flight. When you put on the VR device, you instantly become a free bird, flipping, hovering, and sprinting as you please, feeling the resonance of heartbeat and passion.
- 6

RaceLeague
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Simulation with Crash Test Billy.
Car racing game with soft-body damage, race track builder, track database and multiplayer
- 7

City Car Driving 2.0
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Simulation and Early Access with Crash Test Billy.
City Car Driving 2.0 is a driving simulator designed to help novice drivers master driving in a setting as close to reality as possible.
- 8

Brick Rigs
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Simulation with Crash Test Billy.
Build your own vehicles or download one of the more than 200,000 creations already uploaded to the Workshop and experience the dynamic driving and destruction physics of Brick Rigs!
- 9

Wooden Battles
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Simulation with Crash Test Billy.
Build a wooden fort, place your units, watch the mayhem!
- 10

Bounce Ball
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Casual with Crash Test Billy.
A physics based puzzle game. Bounce the ball of angled surfaces to get it to the finish.
- 11

Wooden Battles: Spec Ops
Single-player alternative to Crash Test Billy — playable solo, no multiplayer required. Shares Action and Simulation with Crash Test Billy.
Wooden Battles: Spec Ops is a stealth action strategy game. Take control of a group of 4 special forces units with unique abilities, infiltrate the enemy base and complete the mission objectives. Use the in-game level editor to create your own missions and upload them to the Steam Workshop.