Single-player games like Poly Bridge 2
Below are 10 single-player Steam games similar to Poly Bridge 2, 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 Poly Bridge 2 page.
Ranked picks
- 1

Poly Bridge
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Poly Bridge 2.
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!
- 2

Poly Bridge 3
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Simulation with Poly Bridge 2.
The best just got better! Rediscover your engineering creativity in this genre-defining bridge engineering and puzzle solving masterpiece.
- 3

Blocksplode
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Poly Bridge 2.
Blow stuff up! Part casual destruction simulator, part fiendish puzzle game. Destroy the structures, sink the grumpy blue blocks and save the gems to rise to the top of the tower. Physics-based puzzle solving or create and share online your own designs. 1P or online multiplayer for up to 4 friends.
- 4

Bridge Constructor Portal
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Simulation with Poly Bridge 2.
Enter the Aperture Science Enrichment Center and experience Bridge Constructor Portal – the unique merging of the classic Portal™ and Bridge Constructor™ games.
- 5

When Ski Lifts Go Wrong
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Poly Bridge 2.
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!
- 6

Kerbal Space Program
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Poly Bridge 2.
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.
- 7

Tinytopia
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Simulation with Poly Bridge 2.
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!
- 8

Diesel Brothers: Truck Building Simulator
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Simulation with Poly Bridge 2.
Enter the World of Diesel! Grab some of the biggest four-wheelers. Trick these trucks, flip them for a profit or race against your friends online. This can go hard or this can go diesel!
- 9

Plasma
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Indie and Simulation with Poly Bridge 2.
Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.
- 10

Poly Bricks
Single-player alternative to Poly Bridge 2 — playable solo, no multiplayer required. Shares Simulation with Poly Bridge 2.
A brick-building puzzle game. Assemble sets of increasing complexity, design your own, share with the community.