Asteroid Field
Reveal safe sectors. Avoid the asteroids. Clear the field.
A logic puzzle set in a deadly debris field. Tap to reveal sectors — each number tells you exactly how many of the eight surrounding sectors hide a concealed asteroid. Flag your suspects, chain your deductions, and clear the entire field without triggering a single impact. Three difficulty levels from a forgiving 9×9 Beginner grid up to the brutal 16×30 Expert field with 99 hidden asteroids.
How to Play
Reveal safe sectors
Tap or click any unrevealed sector to scan it. If it contains a hidden asteroid, the mission ends. If it is safe, a number appears showing exactly how many of the eight surrounding sectors hide an asteroid.
Read the numbers
Each number is a precise count of adjacent hidden asteroids — all eight directions, including diagonals. A blank sector (zero) automatically reveals its entire safe neighborhood. A 3 means exactly three of its eight neighbors are lethal.
Flag suspected asteroids
Long-press (mobile) or right-click (web) to plant a flag on any sector you are certain contains an asteroid. Flags prevent accidental reveals and keep your asteroid count accurate as you work through the field.
Clear the entire field
The mission is complete when every safe sector has been revealed. Every remaining unrevealed sector at that point is confirmed as an asteroid. The field is yours — no impacts, no casualties.