Mine. Maze. Merge. Survive! Gem Miner TD is a Warcraft 3-inspired roguelike tower defense where you actively dig the battlefield, merge tons of unique gems into game-breaking towers, and draft roguelike augments to stop waves of monsters from dragging your miner into the lava.

Most tower defense games lock you into building around a predetermined road. In Gem Miner TD, you control the terrain. Use your miner to dig through cave walls, uncover valuable gem ores, and place blocks to construct intricate, winding mazes that force enemies through your deadliest kill zones.

Your mined gems are your defenses. Combine gems across multiple tiers and rarities to unlock over 60 specialized towers, from long-range Diamond snipers and ricocheting Amethysts to armor-melting Obsidians and poison-stacking Emeralds. Every gem has a distinct role, targeting behavior, and synergy potential.

Adapt your strategy on the fly. Defeating waves and bosses rewards you with roguelike augments that dramatically alter how your towers and miner behave. Stack fire-rate buffs, manipulate gem RNG, trigger chain reactions across adjacent towers, and discover wild combinations where no two runs ever play the same.