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Crack gem-studded asteroids in this incremental space-mining game. You steer while your lasers do the mining. Clear the field and a richer wave rolls in. Chase comets, dodge black holes, then grow a skill tree, draw talents, build guns and go deeper.
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Match strength key:80+65+50+<50Gemstroids
SteamAbout Gemstroids
Crack rocks, catch gems
Fly a small mining ship over a field of asteroids. Your lasers fire on their own at rocks inside your mining ring; you do the steering. Rocks crack, gems spill out, and the tractor beam pulls them in, each one sold for credits the moment it arrives. Sessions are short at first and grow longer as you upgrade.

Clear the field, and it comes back richer
Break the last rock and the next wave drops in at once: tougher, richer, with bonus time on the clock. Every few waves brings a Motherlode, one huge rock worth a pile of normal ones. Quick breaks build a combo multiplier. Grab power-ups, chase comets, and mine close to black holes for richer rocks, if you dare: fall in and you lose a big share of the session's gems.

Build your miner between sessions
Nothing to wait for here, only choices:

Go deeper
Mine Lunite in the Asteroid Belt, then scan your way through the Planet Rings and the Gas Giant to the Black Hole Rim. Each zone's gems are worth far more than the last, and each new zone adds a twist (ice storms, gas clouds, gravity wells) with a skill that turns it to your advantage.

Warp, then start over stronger
Reach the Black Hole Rim and you can Warp: restart the run for void shards. Every shard you ever earn makes all gems worth more for good, and shards buy prestige skills. Pick an anomaly to bend the next run for extra shards. Further out waits the Astral Plane, an endgame zone where you mine Astral Echo for the Astral Forge.

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