
Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!
Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!

Create siege engines, battering rams, ballistas- anything you can imagine- with Besiege’s intuitive & flexible building system and extensive 70+ block collection!
The game’s intricate physics system creates a satisfying building & simulation experience, whether you’re the harbinger of destruction or your machine is falling apart.

Conquer your way through a singleplayer campaign of 55 destructible levels. Spanning across four island nations, each with its own environment, the campaign will pit you against unique civilizations ripe for conquest.
Cruise through Besiege’s huge sandbox levels, terrorizing their inhabitants, honing your craft & testing your ingenious prototypes.

Unlock more than 200,000 community made machines via the Steam Workshop, all available to download & play in your own game!

Besiege Multiverse is a portal for you to connect with other players and unleash chaos in multiplayer. Go head-to-head in epic machine combat or compete against your friends to complete level objectives and win custom game modes. Work cooperatively to conquer levels, complete puzzles and lay waste to armies & fortresses.

Besiege’s powerful level editing tools will enable you to wage war with AI armies and build custom environments with your friends! Make changes to levels in real time and create unique multiplayer experiences with the editor’s logic system. Robot wars, motor racing, football; there’s no end to the creative possibilities!

Besiege has built in support which has enabled our community to produce hundreds of mods and thousands of custom levels & skin packs. Easy to find and simple to install with Besiege’s Steam Workshop integration & our in-game modloader.

Complete a campaign level under 2 seconds

Complete a level with a machine of 6 block points or less

Travel at speeds faster than is sensible

Build your first level using the level editor

Share your machine with the whole world

Subscribe and download someone else's machine

Get hit by lightning

Put out a burning block using water
Minimum OS *: Windows XP 64bit (latest SP) Processor: 2.2Ghz Dual Core Memory: 4 GB RAM Graphics: 1 GB Dedicated VRAM DirectX: Version 9.0c Storage: 3 GB available space Recommended OS: Windows 10 Processor: 4Ghz Quad Core Memory: 8 GB RAM Graphics: 3 GB Dedicated VRAM DirectX: Version 11 Storage: 5 GB available space
Minimum OS: OSX 10+ Processor: 2.2Ghz Dual Core Memory: 4 GB RAM Graphics: OpenGL 2.0 compatible, 512 MB VRAM Storage: 3 GB available space Recommended OS: OSX 10+ Processor: 4Ghz Quad Core Memory: 8 GB RAM Graphics: 3 GB Dedicated VRAM Storage: 5 GB available space
Minimum OS: Ubuntu 12.04 or higher Processor: 2.2Ghz Dual Core Memory: 4 GB RAM Graphics: OpenGL 2.0 compatible, 512 MB VRAM Storage: 3 GB available space Sound Card: ALSA compatible Recommended OS: Ubuntu 12.04 or higher Processor: 4Ghz Quad Core Memory: 8 GB RAM Graphics: 3 GB Dedicated VRAM Storage: 5 GB available space Sound Card: ALSA compatible