You are the gun built into the moon. The moon orbits automatically; you aim, fire and switch weapons. Curve your shots around the planet and protect the cities below.

Choose your next night. Survive its waves. Claim your reward. Pick the threats you’ll face and the equipment you’re fighting for. Survive until dawn to collect your chosen reward, strengthen your build between nights, and take on bosses along the way.

Experiment with 10+ weapons that change how you fight. Send comets into orbit or drill through the planet.

Shape your build with 100+ upgrades, abilities and power-ups. Stack effects that feed each other, or give your build an active ability. Rewind mistakes or summon a second moon to repeat your attacks.

Take the harder night for the better prize. Brave heavier gravity or a shifted orbit for rarer rewards. Collect fragments during combat and spend them between nights on weapons, upgrades and repairs.

Answer calls from the people you are protecting. A district needs a generator you could melt down for your gun. Help them and pay for it, or hold your stock for the next fight. Not every call pays off.

Feeling confident? Make a deal with the Smuggler. Take on extra trouble for extra pay.

Enemies latch onto the moon, hide behind rotating armor and bend your shots off course. Their combinations keep changing what needs your attention first. Bosses can tear cities from the planet or hunt the moon itself.

Keep your winning run going in endless mode. Carry your build beyond the final night. New dangers stack up as you choose your next threat.

Earn credits to unlock more weapons and upgrades for future runs. Win with different weapons to unlock their advanced upgrades.

Defeat bosses to unlock their tougher variants. Win a run to unlock higher difficulties and the option to add challenges and extra enemies to future runs.