-30% DEMON SIEGE
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Screenshots
Description
Collect coins, loot powerful gear, purchase weapons and abilities, and stack ridiculous power-ups infinitely in this retro-inspired FPS Bullet Heaven. Build completely broken combinations as you go from a lowly demon hunter to an unstoppable demon-slaying GOD. Includes Story Mode and Endless Mode.
Released
July 6, 2026
Price
Platforms
Windows
Developer
The Jank Factory
Publisher
The Jank Factory
About
NOTE: No AI-generated assets were used in the creation of this game.
DEMON SIEGE is a compact, retro-inspired FPS Bullet Heaven built by a solo developer using the limited but intentionally old-school EasyFPSeditor engine.
This isn't a massive 4-hour campaign. Instead, it's a fast experience inspired by classic boomer shooters, arcade score chasing, and modern bullet heaven games. You get a short and sweet Story Mode, as well as the much-loved Endless Mode where you can play until you break the game with how powerful you get.
Fight through demonic hordes, earn gold, buy upgrades from vending machines, and create absurd builds where every upgrade stacks infinitely. Become impossibly fast until your boots catch the terrain on fire, leap across the map, fire walls of bullets with every shot, and see just how far you can push the game's systems.
The engine was originally designed for much simpler Wolfenstein 3D-style games, so DEMON SIEGE embraces that retro DNA while stretching the technology far beyond its intended limits. Rather than chase modern graphics, the focus has always been on satisfying combat, addictive progression, and overpowered builds in a retro engine.
Features
- Fast-paced retro FPS combat
- Story Mode and the incredibly badass "Endless" Mode
- Choose from randomly selected, infinitely stacking upgrades every 10 kills
- Killstreak announcer with bonus gold rewards for high scores
- Vending machines let you purchase ammo, skills, health, and guns every round
- Level-ups follow you through every level and don't reset after each stage, so by the end, you become unstoppable. A complete power fantasy.
If you're looking for a polished AAA shooter with huge levels and cinematic storytelling, this isn't that game.
If you love old-school FPS games, fun, wild, and crazy indie experimentation, and watching your character become a ridiculously overpowered GOD, DEMON SIEGE was made for you.
Story Mode is a great way to get adjusted to the game and can be beaten in around 40 minutes to an hour. Endless Mode, on the other hand, can be played forever. We highly suggest starting with Story Mode, then moving up to Endless Mode when you've got the sack for it.
Please leave a review. We worked really hard on this game, and every review helps. Thank you for your interest!
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