Om demon

Roguelike mining tower defense demo packed with content! Mazing, gem merging, roguelike perks, and physics-driven combat collide to create chaotic defenses and wild synergies. Gem Miner TD puts you in the role of a crafty miner tasked with creating deadly mazes, combining powerful gems, and surviving relentless waves. Every run feels fresh, unpredictable, and filled with dazzling chaos.

Dig Into the Demo Features

• Play Tutorial and 21 waves from the first two maps!

• Two game modes! "Classic" for merging gems, or "Reforged" to spend coins for a more traditional tower defense experience.

• Three playable miners, each with unique mechanics and unlockables.

• Experiment with 38 unique gems, and that’s not even half of the full roster!

• Over 30 powerful augments to customize your strategy.

• A variety of unique enemy types to challenge your defenses.

Your progress carries over! The same save is used for both the Demo and Full version. The full game will feature multiple maps and game modes, significantly expanded gem selection, numerous miners with meta-progression, dozens of additional augments and expanded mechanics.

Maze, merge and survive

Easy to play, hard to master! Colorful pixel graphics, deep strategy, and endless replayability await. Are you ready to maze, merge, and survive… or get dragged into lava? Try the demo and wishlist now!

A passion project over three years in the making, carefully crafted for endless fun and discovery. Demo supports mouse and keyboard, gamepads, Steam Deck, touchscreen, and different resolutions including resizable window support. Demo is only available in English.