Besiege is a physics based building game in which you create war machines and lay waste to peaceful hamlets and lonely outposts. You must build a machine which can fulfil multiple objectives, from razing windmills to wiping out battalions of brave soldiers and transporting valuable Ore Stones. Create a trundling behemoth, or take to the skies, and let loose in fully destructible environments. Ultimately, you must conquer all Kingdoms by crippling their castles and killing their men and livestock.

You can now pick up the alpha of Besiege here -

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Out on steam

News 5 comments

Hi Guys!

Let us just start by saying WOW, thank you all so much for your support of Besiege, its been truly overwhelming.

Thank you to all those who have helped fund the development of Besiege by purchasing the Alpha. Thank you to all of you who helped get us Greenlit with shocking speed. Thank you to Youtubers, Streamers & Members of the press who have given us huge exposure to gamers worldwide!.

The response we've received from people is astonishing, so many positive reviews and so many insane contraptions. We've seen machines from the humblest of cars to most fearsome of huge mega-walkers, to spectacular flying machines to Trojan Horses & huge Knights atop their wooden steeds.

So today we have two exciting things for you!

Firstly something people have been screaming for since we first released the Alpha, STEAM. Besiege is now available to purchase on steam!
Unfortunately the current Steam release does not support Mac or Linux versions of the game, we're really sorry about this but we're working hard on getting them supported!
For those of you that have already purchased the Alpha from our website you will be able to claim your free Steam Keys in a couple of days! We will post a guide on how to do this!

Second, V0.02!
We've managed to add a few new blocks for you to play around with, as well as bug fixes and changes we've made based on feedback and watching people play the game.
So without further ado here is the change log:

Change log - V0.02


Added Plow Building block to weapons tab
Added Aerodynamic Block
Added Ballast (Helps adjust mass of machine)


Improved Key Mapper window
Added reset option to the Key Mapper
Added toggle option to wheels and cogs
Drills and Saw Blades can now be controlled
Balloon string length can be be changed
Added power slider to Cannons
Cannon balls now inherit the velocity of the cannon used to fire them
Added power slider to Water Cannons
Water now inherits the velocity of the Water Cannon that produces it
Added Auto-brake option to Wheels
Added Auto-Grab toggle to Grabbers
Holding X or delete for more than half a second starts deleting blocks behind the cursor
Changed War Machine save format, xml
---Special characters can now be used in machine names
---Each block now has an individual GUID when saving
---Blocks now store their scale in the save file (can be edited in save file)
---Blocks now save an unlimited number of hotkeys, toggles and sliders
---Blocks now save an unlimited amount of custom data
---Improved access to AddPiece, BoundingBoxController and MachineObjectTracker.
You can now double click or CTRL + A in a slider’s text field to select all
Improved Timescale slider, making it easier to drag
Added clicking sound to copy, paste and close options in the block mapper
Undo now works for un-deleting machines
Improved how the translate tool moves war machines
Opening a block that can’t be customized in the Key Mapper tool now displays a message
Added CTRL + SHIFT + Z shortcut for redo
Added warning when attempting to start simulation with god powers activated


Fixed problem where some keyboards could not add a decimal in the slider text field
Starting simulation at 0% speed no longer simulates any physics upon starting the simulation
Fixed 0%>100% simulation speed bug
Fixed Translate tool arrows being slightly offset
Fixed some boundary box issues
Optimized a lot of the game’s code in a variety of areas

Update 19, Version 0.45 & The Multiverse Announcement

Update 19, Version 0.45 & The Multiverse Announcement


Version 0.45 has been released bringing two new levels to the Island of Valfross and Multiplayer + A Level Editor has been announced!

Update 18 - Version 0.42

Update 18 - Version 0.42


Today we’ve got another Besiege update for you, Version 0.42. V0.42 brings with it 3 new blocks, updates to existing blocks and several bug fixes.

Update 16 - V0.35

Update 16 - V0.35


Today we’ve another update for you, Version 0.35, which adds the last 4 campaign levels to The Island of Tolbrynd. The next set of levels to be released...

Update 14 - V0.30

Update 14 - V0.30

News 1 comment

Update V0.30 for Besiege has been released, adding two new sandbox levels and a Skin pack loader.

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Hi guys. I bought Besige 1 year ago and I haven‘t played it much and yesterday I saw the new update. I wanted to upgrade Besige but I haven’t found something how to upgrade this.
Pls help me
Best regards Electro_TnT

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I'd love to see besiege available on the nvidia shield console.

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Would you be interested in talking about your game on twitch? Friday is the last day of our kickstarter and we are talking with indie devs, playing each others games etc.

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why can't my lab top run steam?!

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is it free?

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