Demon Siege
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About Demon Siege
Demon Siege is a retro first-person shooter about fighting through a demonic gauntlet after you accidentally open portals to Hell by reading the Necronomicon. You kill your way out, avenge your Mom and face the Lord of Darkness, starting with a basic revolver and growing into a fast, powerful fighter through levels and upgrades.
Fight through the arenas
Each map requires you to kill exactly 50 demons before the exit opens to the next arena. Keep your killstreak going to multiply the gold you earn, slide around corners and bounce off giant mushrooms as you fight. Between maps, spend your gold at vending machines to improve your build.
Stack your skills
The game has nine skills, including health regeneration, movement speed, health leech, magazine size, jump height and multi-bullet spread. Upgrades stack without a level cap, letting you build your character into a faster and more destructive fighter.
Story and modes
Story Mode is a roughly 45-minute campaign with dark humor. Choices can lead to a Good Ending or a Bad Ending; attacking an innocent character may result in the Bad Ending. After completing the story, you can play Endless Mode, where increasingly large waves of hellspawn test your build.
Other features
The game includes an original heavy metal soundtrack composed by MIEP and a finger-gun that you can use to fight the Devil.
Frequently asked questions
The best price for Demon Siege is $2.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Demon Siege are: Windows 11, GeForce GTX 1660 Super, AMD Ryzen 5 5600G, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Demon Siege is a single-player game.
Yes. Demon Siege is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











