Besiege is a physics based building game in which you construct medieval siege engines and lay waste to immense fortresses and peaceful hamlets. Build a machine which can crush windmills, wipe out battalions of brave soldiers and transport valuable resources, defending your creation against cannons, archers and whatever else the desperate enemies have at their disposal. Create a trundling behemoth, or take clumsily to the skies, and cause carnage in fully destructible environments. Ultimately, you must conquer every Kingdom by crippling their castles and annihilating their men and livestock, in as creative or clinical a manner as possible!

Battle against other players in custom arenas or team up with your friends to destroy armies of knights, obliterate fortresses and sack settlements, by travelling through into the Multiverse!

Download other player’s war machines, levels, skins and even mods through the Steam workshop to further customize your playing experience!

Key FeaturesSingleplayer Campaign - A challenging single-player campaign with 54 levels. Conquer the 4 differently themed islands and claim victory over the Besiege world.

Multiplayer PVP & Co-Op - Go head to head in epic war machine combat or compete against your friends to complete objectives and levels. Work Cooperatively to conquer objectives, complete puzzles and lay waste to fortresses & armies.

Open Sandbox - Mess around in open sandbox environments with your friends, construct wacky machines and abuse the level’s inhabitants at your leisure.

Level Editor - Build new levels with your friends, or have your friends testing the level in real-time whilst you build it! Construct castles, create armies, design custom game modes and objectives, or bring your level to life with the logic editor.

Custom Skins - Change the visual appearance of your machine using customized skins