Besiege is a physics building game about constructing mechanical machines to annihilate armies, obliterate castles, and overcome obstacles.

Create catapults, tanks, helicopters - anything you can imagine - with Besiege's intuitive and flexible building system and extensive 70+ block collection!

Conquer your way through a single-player campaign of 55 destructible levels spanning across four island nations, each with its own environment.

Dive into The Splintered Sea expansion, introducing water to Besiege for more machine-building conquests! Battle your way through a 15-level oceanic campaign, explore an all-new sandbox, and harness 8 new blocks to unleash chaos on the high seas. Following your relentless campaign from Ipsilon to Krolmar, take to the Splintered Sea, where people known as "The Offlanders" occupy a series of islands. Annihilate Admiral Drasckar's fleet of cutters and go toe-to-toe with his prized galleon. Slip beneath the waves, evading the Offlander's traps and fending off creatures of the deep. Obliterate Drasckar's fortress and unleash his horrifying nemesis!

The Splintered Sea expansion comes with its own sandbox for you to explore. Sail through a rugged archipelago, challenge a mighty galleon, and terrorize local fishermen. Drop beneath the waves and explore the ancient ruins, or put your machine to the test on the water course.