TRUSSFALL: Bridge Builder

Every bridge you build is tested by real physics. No scripted collapses, no fake wins — if your truss can't carry the load, it comes down.

TRUSSFALL gives you a budget, a gap, and a set of materials. What you do with them is engineering.

99 Hand-Built Levels
From a simple beam over a stream to cantilevers, arches, suspension spans and multi-tier crossings. Each level has its own budget, and three stars means solving it inside that budget — not just surviving.

Real Simulation
A Verlet physics engine models tension, compression and material failure member by member. Watch stress build in a beam before it snaps. Reinforce it, or find out the hard way.

The Daily Trial
One shared puzzle every day, the same for every player, free for everyone. Different loads, different constraints, its own separate economy.

Built for Thinking
Sandbox mode with unlimited resources when you want to experiment. A colorblind-friendly stress palette. Hints when a span defeats you. No timers, no energy meters, no ads.

Play at your own pace. Fail as often as you need. The physics doesn't care how long you take — only whether the structure holds.