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Geeky Alien

Orbital Sweeper

Minesweeper, but the mines are unstable asteroids.

HTML & CSSMedium

Clear the orbital grid by deducing where the unstable asteroids sit, with a first-click guarantee and a no-guess board generator.

Controls: Click to sweep, right-click or long-press to flag

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What to expect

  • The first click is always safe, and boards are generated to be solvable without guessing
  • Three field sizes, with a live mine counter and timer
  • Full keyboard play, including flagging
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About this game

Orbital Sweeper is a free browser game in the HTML & CSS part of GeekyAlien's online games section. It runs entirely in your browser — nothing to install, no account, and no data leaves your device. Your best score is stored locally, so it survives a reload but stays private to this browser.

It sits in the Strategy & Defense category, rated medium to pick up. Clear the orbital grid by deducing where the unstable asteroids sit, with a first-click guarantee and a no-guess board generator.

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