This game is now available on Steam!

Thanks for your help in getting this game selected for distribution via Steam. More information including a link to the Steam store page can be found below.

Greenlight is being retired. For more information on how to submit games to steam, refer to this blog post.
Platforms: PC, Mac, Linux
Languages: English
Players: Single-player
Jan 16, 2015 @ 7:07am
Feb 18, 2020 @ 5:55am

View Besiege in the store

Store page
Recent Announcements View All (3)
Besiege on Steam!
Nerd3 video on Besiege!
Release date: Alpha Out Now
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 killing their men and livestock, in as creative or clinical a manner as possible.

  • Physics based building – if your machine can’t take the strain, it will buckle and splinter apart.

  • A broad array of building blocks to construct towering, ridiculous machines - or go for ruthless efficiency. Utilise flamethrowers, hinges, blades, pistons and much more.

  • Puzzle-centric campaign levels encouraging experimentation. Blaze your way through kingdom after kingdom planting red flags as you go. Eventually, each isle will be conquered.

  • Fully Destructible/flammable environments, with outposts, castles, farms and livestock to crush and combust (in slowmotion, too).

  • Hazards such as fire can either be your worst enemy or your greatest asset. It spreads in a deadly manner.

  • A sandbox level to test your machines and generally wreak havoc.

Being on Steam will not only mean easy access for you but also that we can implement things like Steam Workshop, allowing users to share their siege engines with the community easily.

About us

Hello everyone,

We are Spiderling, a small team based in the South of England comprised of two chaps – Marco Marino and Matt Woolven. We have been building Besiege for a year and a half now, using the Unity engine to bring its chaos to life.

If you’d like, you can support us further by purchasing the alpha version of Besiege here :

- you’ll also receive a steam key if we get greenlit!


Hello everyone, for those that have bought the alpha, the current build of Besiege is v0.01 - we are hoping to have a new version by some point next week. We are only a small team (2 of us!) so please bear with us as we get on top of things! Many thanks for supporting us at this early stage!

To find out when an update is ready please check our website, devlog, or our IndieDb page! We will have a way of letting you know there is an update ready from in game in our next update - v0.02!

You will be able to download any updates to Besiege via the Humble Store!
Popular Discussions View All (91)
Jun 27, 2015 @ 5:52pm
What do you want to see in Besiege
May 24, 2015 @ 2:35pm
Jun 9, 2015 @ 10:59pm
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Mr. Headcrab May 16, 2021 @ 9:03pm 
speedgamer5 Apr 12, 2017 @ 3:26pm 
my game just disappeared
Emperor Eagle Mar 21, 2017 @ 1:06am 
Best game on Steam Greenlight.
DARUKA Jan 7, 2017 @ 2:56am 
Vinriss Sep 3, 2016 @ 11:03pm 
One of the best physic game
Mellbranodak Aug 22, 2016 @ 1:49am 
Когда можно кричать?
Atomic_Blast Apr 22, 2016 @ 5:00am 
its like sandbox in robocraft
Emperor Eagle Mar 12, 2016 @ 4:06pm 
It would be cool if achievements and trading cards were added however.
Emperor Eagle Mar 12, 2016 @ 4:06pm 
Amazing game, even thought it's still in the alpha stage there is heaps to do.
Лимоню Вареники Feb 21, 2016 @ 8:19am