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Everything you need in five minutes. Then go play — it teaches the rest as you go.
Keyboard: WASD or arrow keys to move, Space or click to shoot, Shift for a bomb, P or Escape to pause. Gamepad works too.
Phone or tablet: play in landscape. Drag the left side of the screen to move, hold the right side to fire, tap the bomb zone in the bottom-right, and the pause icon top-right.
Arcade is an endless roguelike run with all five weapons unlocked and enemy tiers that climb the further you push. Campaign is a five-act, 150-level story with a crew, contracts, branching decisions and three endings — you start with the Basic weapon and unlock the rest.
Every shot builds heat. Fill the bar and the weapon overheats and locks until it cools. Each weapon has its own heat cost — the Laser runs hottest, the Basic coolest. Pace your fire.
Pick one of three upgrades after each level. They last for the run only. After boss fights, spend Salvage at the Fleet Dock on ship systems and new weapons.
In the campaign you escort 200 ships and 2,000 souls. Enemies that slip past attack the fleet — clear at least 80% of each level to keep them safe, and a perfect clear can bring lost ships back.