Get the ultimate Besiege experience with the Seafarer Edition, including the beloved machine building physics game Besiege and The Splintered Sea expansion.
Besiege
Besiege is a physics building game about constructing mechanical machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!
The Splintered Sea
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!
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-06-02
Monthly Recap - May Edition
For this month’s YUPLAY recap we have prepared some very interesting news pieces about upcoming updates, premiers and exclusive news in the world of video games. Be sure to check out the fine selections of short stories including new Warhammer 40K Dawn of War game and yet another Civilization VII update, as we go through what really shaped up as a very fruitful month for the gaming industry…
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