Single-player games like FUNDAMENTA
Below are 10 single-player Steam games similar to FUNDAMENTA, 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 FUNDAMENTA page.
Ranked picks
- 1
PROJECT LEVELS
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Indie and Simulation with FUNDAMENTA.
PROJECT LEVELS is a multiplayer creation sandbox where you and your friends can shape worlds and interactive experiences together.
- 2
Crapht Box
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Indie and Simulation with FUNDAMENTA.
Crapht Box is a Fantasy Physics Sandbox, inspired by the Fantasy Console genre. It brings a simulated world with a number of disks and tools, and leaves you to play, program, create and share disks.
- 3
Board Game Engine
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Indie and Simulation with FUNDAMENTA.
The Board Game Engine was built with game developers in mind as a tool for designing and prototyping your very own tabletop games with as much freedom as possible.
- 4
Amarillo's Vehicular Manslaughter
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Action and Indie with FUNDAMENTA.
You drive, you fail, you die horribly. All sorts of vehicles and funny physics. That's what makes this game interesting. Plus it has a map editor so you know you'll see some cursed stuff in the Workshop. Great on the Deck too!
- 5
Destructive Contraptions
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Action and Indie with FUNDAMENTA.
Destructive Contraptions is a physics sandbox where you build crazy machines out of dominoes, cannons, and pivots to trigger massive chain reactions. Design chaotic inventions and demolish giant cities, all without worrying about real world laws or life threatening liabilities.
- 6
GoreBox
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Action and Indie with FUNDAMENTA.
GoreBox is a chaotic physics-driven sandbox where creativity meets destruction. Use the Reality Crusher to spawn, manipulate, and obliterate anything. Customize, battle with friends, roleplay, or face devious creatures. In this world, your imagination rules—and chaos is your playground!
- 7
Plastic Battlegrounds
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Action and Indie with FUNDAMENTA.
Set up the battlefield with an ever growing list of units, vehicles, and emplacements! Then either join the battle as a plastic soldier or be life sized and tower over the chaos.
- 8
Contraption Maker
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Indie and Simulation with FUNDAMENTA.
The spiritual successor to The Incredible Machine from its original designer and programmer. Play 100s of puzzles. Build and share elaborate contraptions with an huge variety of parts and critters.
- 9
Question Mark
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Action and Indie with FUNDAMENTA.
Question Mark is a physics-based, logic-based puzzle solving game with a first-person view, the goal is always to overcome challenges and move forward.
- 10
Simulacro
Single-player alternative to FUNDAMENTA — playable solo, no multiplayer required. Shares Action and Indie with FUNDAMENTA.
Simulacro is a 3D action-platformer with a measured pace and unconventional mechanics. In a world of strange physics and synthetic creatures, the experience challenges genre standards with a unique approach.