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Battle impossible swarms of 1,500+ enemies at 60FPS. Swarmbound is a high-performance, moddable bullet heaven built for the Steam Deck. Choose your class, craft your build, and survive the pixel-art chaos. Zero bloat. Total Mayhem.
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Can you survive the first 15?
The Swarmbound Demo is a high-octane technical preview designed to show you exactly what our custom "Unlimited NES" engine can do. Experience the foundational chaos of our tactical bullet heaven with zero loading screens and rock-solid performance.
To give you a taste of the full experience, this demo features a strict "Power or Persistence" cap:
The Level 15 Ceiling: Fine-tune your build and experiment with class traits until you hit Level 15.
The Wave 15 Gauntlet: See if your positioning and strategy can hold out against the intensifying desert swarm until the end of Wave 15.
Whichever Comes First: The run ends once you hit either milestone. How much destruction can you pack into those 15 steps?
Instant Access: Jump into the fray immediately with the Sorceress and Paladin classes.
Massive Scale: Even in the early waves, witness up to 1,000+ active 8x8 mobs on screen at once—a feat impossible on original retro hardware.
The Modding Preview: Experience our "Open Engine" architecture first-hand. This demo includes the same hot-swappable data structures used in the full game.
Full Steam Deck Support: Optimized to run "buttery smooth" at 60fps on handhelds, just like the full release.
