Compare Poly Bridge 3 prices across trusted key stores and find the best deal. Developed by Dry Cactus. Published by Dry Cactus. Released on 5/30/2023. Available on PC, Mac, Linux. Genres: Simulation.

96% positive across nearly 2,000 Steam reviews tells you something: this physics puzzler respects your time, respects your brain, and still manages to make catastrophic bridge failure feel like progress.

I have a soft spot for games that smuggle genuine systems thinking into a package that looks approachable from the outside, and Poly Bridge 3 pulls that trick off better than most. The premise is brutally simple: get vehicles from one side of a gap to the other. What sits underneath that premise is a layered budget-versus-physics puzzle engine that rewards iterative thinking and quietly punishes players who refuse to treat triangles as load-bearing gospel. The campaign spans over 100 levels across a dozen themed worlds, and the structure itself is a meaningful upgrade from earlier entries. Rather than forcing a linear unlock chain, the open-world map lets you branch between worlds once thresholds are cleared, so dedicated hydraulics fans can spend time in worlds like Bifrost Bend while players who prefer jump-ramp chaos route through Vaulting Towers instead. Each world has a mechanical identity, which keeps the campaign from feeling like one long escalating corridor. Materials on offer include wooden struts, steel beams, rope, cable, springs, hydraulics, and the new Foundation material, an expensive concrete anchor designed to relieve stress on long-span bridges. That last addition is not a shortcut; it is expensive enough that leaning on it heavily will wreck your budget score, so real optimization still requires understanding load paths and triangulation. Three awards per level (completion, under-budget, and unbreaking) create three distinct difficulty modes inside each puzzle without the game ever saying so explicitly. Casual players finish levels and move on. Optimization-minded players will chase sub-budget clears and discover that the cheapest working bridge rarely looks like the most obvious one. The budget par system is the closest thing PB3 has to a scoring layer, and it is a good one. Build Zones, another new mechanic, restrict where your materials can physically sit, forcing solutions that a free-form approach would never reach. The tutorial is light, arguably too light on advanced techniques like rope bridges and hydraulic timing, and players who hit the mid-campaign wall without understanding joint mechanics may find the community help function more useful than anything the game teaches directly. That gap is the clearest criticism the game earns. The mod ecosystem and Steam Workshop are both active. Post-launch patches, including the 1.3.0 physics overhaul that corrected node friction and updated material masses for more realistic stress behavior, show that Dry Cactus treats the simulation seriously rather than as a backdrop. Weekly challenges with global leaderboards extend the lifespan beyond the campaign considerably, and the sandbox mode removes budget constraints entirely for players who just want to build something absurd. The physics engine is deterministic, meaning a saved bridge will perform exactly the same every single run, which is the kind of reliability that simulation players know to never take for granted. If you have never touched the series, starting here is sensible. The earlier games are similar enough that PB3 replaces them rather than requiring them as prerequisites. If you burned through Poly Bridge 2 and found the difficulty ceiling too low, the new mechanics and world variety add meaningful headroom. If you bounced off puzzle games because of opaque systems and no feedback loop, PB3's satisfying collapse animations and fast iteration cycles make failure genuinely entertaining rather than frustrating. That is a harder design problem to solve than it looks. Diego, Scout Team

Poly Bridge 3

Poly Bridge 3

May 30, 2023Dry Cactus
GamerScout Says

96% positive across nearly 2,000 Steam reviews tells you something: this physics puzzler respects your time, respects your brain, and still manages to make catastrophic bridge failure feel like progress.

PCMacLinux
Steam Deck VerifiedProtonDB Platinum
Best Price Available
€3.54
at Eneba
Lowest tracked: €3.54
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GamerScout Verdict

Best for puzzle fans who want genuine systems depth wrapped in a low-friction, high-replayability package with an active Workshop community.

Compare Prices(4 stores)

EnebaBest price
StandardEurope (EU)Steam KeyKey
€3.54
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€4.94
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€5.99-70%
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€9.00
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyGift copy
€24.40-13%
Priced in EUR by the store
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StandardGlobalSteam KeyGift copy
€24.40-13%
Priced in EUR by the store
Buy

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Price History

Lowest tracked
€3.548 Jun 2026
Current best
€3.54
Lowest since we started tracking
Keyshops
€3.26€3.45€3.63€3.828 Jun1 Jul24 Jul15 Aug7 Sept
8 Jun — 7 Sept
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Screenshots & Media

About Poly Bridge 3

I have a soft spot for games that smuggle genuine systems thinking into a package that looks approachable from the outside, and Poly Bridge 3 pulls that trick off better than most. The premise is brutally simple: get vehicles from one side of a gap to the other. What sits underneath that premise is a layered budget-versus-physics puzzle engine that rewards iterative thinking and quietly punishes players who refuse to treat triangles as load-bearing gospel. The campaign spans over 100 levels across a dozen themed worlds, and the structure itself is a meaningful upgrade from earlier entries. Rather than forcing a linear unlock chain, the open-world map lets you branch between worlds once thresholds are cleared, so dedicated hydraulics fans can spend time in worlds like Bifrost Bend while players who prefer jump-ramp chaos route through Vaulting Towers instead. Each world has a mechanical identity, which keeps the campaign from feeling like one long escalating corridor. Materials on offer include wooden struts, steel beams, rope, cable, springs, hydraulics, and the new Foundation material, an expensive concrete anchor designed to relieve stress on long-span bridges. That last addition is not a shortcut; it is expensive enough that leaning on it heavily will wreck your budget score, so real optimization still requires understanding load paths and triangulation. Three awards per level (completion, under-budget, and unbreaking) create three distinct difficulty modes inside each puzzle without the game ever saying so explicitly. Casual players finish levels and move on. Optimization-minded players will chase sub-budget clears and discover that the cheapest working bridge rarely looks like the most obvious one. The budget par system is the closest thing PB3 has to a scoring layer, and it is a good one. Build Zones, another new mechanic, restrict where your materials can physically sit, forcing solutions that a free-form approach would never reach. The tutorial is light, arguably too light on advanced techniques like rope bridges and hydraulic timing, and players who hit the mid-campaign wall without understanding joint mechanics may find the community help function more useful than anything the game teaches directly. That gap is the clearest criticism the game earns. The mod ecosystem and Steam Workshop are both active. Post-launch patches, including the 1.3.0 physics overhaul that corrected node friction and updated material masses for more realistic stress behavior, show that Dry Cactus treats the simulation seriously rather than as a backdrop. Weekly challenges with global leaderboards extend the lifespan beyond the campaign considerably, and the sandbox mode removes budget constraints entirely for players who just want to build something absurd. The physics engine is deterministic, meaning a saved bridge will perform exactly the same every single run, which is the kind of reliability that simulation players know to never take for granted. If you have never touched the series, starting here is sensible. The earlier games are similar enough that PB3 replaces them rather than requiring them as prerequisites. If you burned through Poly Bridge 2 and found the difficulty ceiling too low, the new mechanics and world variety add meaningful headroom. If you bounced off puzzle games because of opaque systems and no feedback loop, PB3's satisfying collapse animations and fast iteration cycles make failure genuinely entertaining rather than frustrating. That is a harder design problem to solve than it looks.

Diego
Diego · Scout Team

Strategy & simulation

Tags

singleplayerachievementscontroller-supporttrading-cardsworkshopcloud-savestier:indiePhysics PuzzleBudget OptimizationOpen World CampaignWeekly ChallengesDeterministic PhysicsBuild ZonesLeaderboard GrindMod Support

System Requirements

Minimum

OS
Windows 7 (SP1+), Windows 10 and Windows 11
Memory
4 GB RAM
DirectX
Version 10
Storage
1000 MB available space
Graphics
DX10, DX11, or DX12 capable GPU
Processor
Intel/AMD

Recommended

Requires a 64-bit processor and operating system

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Game Info

Developer
Dry Cactus
Publisher
Dry Cactus
Release Date
May 30, 2023

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Frequently asked questions about Poly Bridge 3

How much does Poly Bridge 3 cost?

As of 7 September 2026, the cheapest in-stock offer for Poly Bridge 3 is €3.54 at Eneba, out of 6 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Poly Bridge 3 cheapest?

The lowest in-stock price we track for Poly Bridge 3 is €3.54 at Eneba (7 September 2026). We compare 6 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Poly Bridge 3 available on?

Poly Bridge 3 is available on PC, Mac, Linux.

When was Poly Bridge 3 released?

Poly Bridge 3 was released on 30 May 2023.

Who developed Poly Bridge 3?

Poly Bridge 3 was developed by Dry Cactus.