Single-player games like 3d Bridges
Below are 8 single-player Steam games similar to 3d Bridges, 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 3d Bridges page.
Ranked picks
- 1
3d Engineers
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
3d Engineers is a sandbox game/tool in engineering and construction.
- 2
Kerbal Space Program
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
- 3
Poly Bridge
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
Unleash your engineering creativity with an engaging and fresh bridge-building simulator with all the bells and whistles. Enjoy hours of physics-based puzzle solving in the Campaign and then jump in the Sandbox to create your own bridge designs and puzzles!
- 4
When Ski Lifts Go Wrong
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
Ride into a hilarious construction puzzler; packed with over 100 creative physics-based challenges, sports and bloody disasters! Build contraptions to help every passenger reach their destination. Enjoy the sports by controlling your riders away from (or towards if you feel like it) peril!
- 5
Tinytopia
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
Construct charming toy towns and cities atop tiny terrain. Combine building blocks to create new megastructures. Test your skills in the physics-based Challenge stages or simply unwind and obliterate everything with an array of cute catastrophes!
- 6
Bridge Constructor Portal
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
Enter the Aperture Science Enrichment Center and experience Bridge Constructor Portal – the unique merging of the classic Portal™ and Bridge Constructor™ games.
- 7
From Dust
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
Immerse yourself in a world as exotically beautiful as it is dangerous in this modern God-Game where Nature is the Star!
- 8
Crazy Machines 3
Single-player alternative to 3d Bridges — playable solo, no multiplayer required. Shares Simulation with 3d Bridges.
Crazy Machines 3 is the latest, greatest, most amazing and craziest part of the series and fascinates once more with physic-based puzzles. Build your own crazy machines and share your awesomeness across the world thanks to the Steam® Workshop.