About This Game

NOTICE

• Steam Deck/Linux Compatibility: Performance on Steam Deck or Linux devices may crash or vary.

• No AI Assets: No AI-generated assets were used in this game.

ABOUT THIS CRAZY JANKY ASS GAME

DEMON SIEGE is a fast-paced, retro-inspired FPS Bullet Heaven built by a solo developer with a dark sense of humor in the old-school Easy FPS Editor engine.

Designed for raw arcade action, DEMON SIEGE blends boomer shooter movement with infinite roguelite stacking. Fight demonic hordes, earn gold, buy vending machine upgrades, and break the game with absurd builds. Fire walls of bullets, leap across the map, run so fast the floor catches literal fire, and become an unstoppable god.

Includes a short, sweet Story Mode with multiple endings. Don't expect anything Oscar-worthy, but it has plenty of stupid charm.

KEY FEATURES

• Dark & Stupid Humor: Crude, stupid fast-paced, and unhinged arcade attitude.

• Infinitely Stacking Perks: All upgrades carry over between levels and stack without limits.

• Fast Arcade Combat: High-speed movement and classic boomer shooter gunplay.

• Multiple Endings: A tight 30-minute campaign with distinct Good and Bad endings.

• Endless Mode: Battle forever, scale infinitely, and see how long you can survive.

• Single-Session Runs: True arcade-style structure meant to be cleared in one sitting.

• Vending Machine Shops: Spend gold between rounds on guns, skills, health, and ammo.

• Killstreak Announcer: Chain kills together for score multipliers and extra gold payouts.

• Original Soundtrack: Features a blood-pumping album composed by MIEP.

If you're looking for a cinematic AAA shooter, this isn't it. If you love wild indie experimentation, retro FPS action, and becoming ridiculously overpowered, DEMON SIEGE is your ticket.

Start with Story Mode, then test your limits in Endless Mode. Wishlist, join our Discord, or buy DEMON SIEGE today! Please leave a review.. It helps a solo dev tremendously!

Mature Content Description

The developers describe the content like this:

It's about you killing demons, and the demons bleed.