Boom Grid
Hunting Mines Together
From now on, the motto is: Everyone onto one board! Our new game Boom Grid brings you together at one table – with clear turns, risky decisions, and points that have to be earned honestly.
Whether you reveal carefully, flag cleverly, or trigger a cascade: every action counts here. We’ll explain how Boom Grid works and what you need to watch out for.
The Foundation: One Board, Alternating Turns
In Boom Grid, everyone plays on the same board. Players take turns. The status display at the top shows all players’ points by player color – and on the far right next to the bomb icon, the number of remaining mines.
Whoever’s turn it is has 1–3 actions. An action is either:
- reveal a cell or
- flag a cell.
After the 3rd action, the turn ends automatically.
Important: Flagging is only allowed after the first cell has been revealed. Before that, there is no information from which a mine could be deduced.
Points, Risk, and Clear Rules
Every action can change your score:
- Stepping on a mine: −5 points, and the turn ends immediately. The mine stays revealed, counts as found, and is harmless afterward.
- Correctly flagging a mine: +5 points, and the mine is defused.
- Wrong flag: −3 points. The cell remains covered, but the wrong flag is visibly marked for everyone with ❌. A cell that has already been wrongly flagged cannot be flagged again.
The first reveal of the game is guaranteed to be mine-free; the mines are only placed afterward.
The Cascade: One Click, Many Cells
If you reveal a cell with no neighboring mines (cell value 0, appears empty), all covered neighboring cells are automatically revealed. If a revealed neighbor also has no neighboring mines, the reveal continues recursively, until all connected empty cells and the directly adjacent border cells with numbers (> 0) are revealed.
Already revealed cells, cells defused/exploded as mines, or incorrectly flagged cells are skipped. Revealing the entire cascade costs only 1 action and awards a flat 1 point – not per revealed cell.
The Board: Scaled to Your Round
The board scales with the number of players and can be overridden via settings (width, height, mineCount):
| Players | Board | Mines | | ------- | ----- | ----- | | 2 | 8×7 | 10 | | 3 | 9×8 | 14 | | 4 | 10×9 | 18 | | 5 | 11×10 | 22 | | 6 | 12×11 | 26 |
End and Victory
The game ends when all safe cells have been revealed and all mines have been found – whether flagged or stepped on. The winner is whoever has the most points at the end. In case of a tie, the same rank applies; players who leave are ranked behind everyone else.
With Boom Grid, we make sure every round stays collaborative, transparent, and exciting: fair for cautious players, rewarding for bold revealers, and risky for wrong flags.
Grab your friends, reveal the board, and climb the leaderboard!
Good luck in your next rounds!
Your elo-Team