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In Kaboom, you take on the role of Master Builder, constructing towers as your opponents, the Saboteurs, simultaneously fire their catapults in an attempt to knock them down. Towers only score points if they are still standing at the end of your turn.


  • 25 Small Tower Tiles
  • 1 Mega Tower Tile
  • 16 Wooden Tower Blocks
  • 4 Wooden Catapults
  • 9 Wooden Ammunition Dice
  • 1 Sand Timer (30 seconds)
  • 1 Sticker Sheet
  • Rulebook

Object of the Game

Score the most points by quickly constructing towers, and deny your opponents points by shooting down their towers with your catapult and dice.

The player with the most points at the end wins the game!


Place the Mega Tower Tile in the center of the table.

Shuffle the Small Tower Tiles, and arrange them randomly around the Mega Tower Tile, as in the illustration below:

Note: You can place the tiles wherever you want to, just as long as they are touching and located centrally around the Mega Tower Tile.

The youngest player starts the game as the Master Builder. (On subsequent turns, this responsibility will rotate clockwise). The Master Builder takes the Tower Blocks and Sand Timer and places them in front of him.

All other players will take on the role of the Saboteurs (this turn). Each Saboteur receives one Catapult, and a number of Ammunition Dice based on the total number of players:

  • 2 players (1 Saboteur): 8 dice
  • 3 players (2 Saboteurs): 4 dice
  • 4 players (3 Saboteurs): 3 dice
  • 5 players (4 Saboteurs): 2 dice

Any remaining Catapults and Ammunition Dice are not used, and are placed back in the box.

Game Play

Each turn, one player takes on the role of the Master Builder, while the other players become the Saboteurs. The Master Builder will try to construct the most towers possible while the Saboteurs attempt to destroy his towers by firing their catapults at his construction.

When all players are ready, the Master Builder flips over the Sand Timer and begins his construction, while the other players simultaneously launch their Ammunition Dice to try and knock over the Builder's Tower Blocks.

If one or more towers are still standing when the Sand Timer runs out, the Master Builder claims his successful Small Tower Tiles and places them in front of him. The role of Master Builder then passes to the next player.

The Master Builder

The Master Builder begins the turn by flipping over the Sand Timer.

All players will then have exactly 30 seconds before the timer runs out. The Master Builder must quickly choose a tower on a Tower Tile he wishes to construct, then begins stacking Tower Blocks on that tile in the order indicated.

The Master Builder can choose to complete as many towers as he wishes (keeping in mind that he has a limited number of Tower Blocks), as long as the Sand Timer has not run out of time.

  • Each Tower Block can only be used to score one Tower Tile per turn. They can be used to construct a new tower if you change your mind about which tower you wish to build, or if the original one is destroyed.

  • Towers must be built on top of the Tower Tile they are trying to score.

  • Tower Tiles cannot be moved during a turn. They are only removed at the end of each turn, during scoring.

  • You are not allowed to block or intercept Ammunition Dice fired at your towers.

  • If one (or more) of your towers is knocked over, and there is still time left in the Sand Timer, you may try to reconstruct it.


As the Master Builder constructs his tower(s), the other players take on the role of Saboteurs.

Saboteurs are allowed to fire their Ammunition Dice at the towers of the Master Builder, as long as there is still time remaining in the sand timer.

To do so, the Ammunition Die is placed on top of a catapult and launched in the direction of a tower.


  • Catapults can be positioned anywhere on the table, but must always be kept AT LEAST one foot away from the closest Tower Tile.

  • Saboteurs can only fire each Ammunition Die one time each turn. When they no longer possess any more dice, their turn is over.

  • Except for using their catapults, Saboteurs are not allowed to hamper the Master Builder in any way while he builds his towers.

Optional Rule

If an Ammunition Die lands on top of a Tower Tile, that tile can no lon- ger be built on for the rest of the turn. The Master Builder can neither start a new tower on it, nor continue to construct an existing tower in that location.

However, if the tower has already been completed, it will still score points at the end of the turn as long as it is still standing.


As soon as the Sand Timer runs out, all players must immediately stop what they are doing and verify the Master Builder's work.

If one or more towers are still standing, all players verify that they have been built correctly (stacked in the correct order, on top of the correct tile), then for each tower built correctly, the Master Builder takes (and scores) the corresponding Tower Tile and places it faceup in front of him.

The number written on each Tower Tile indicates the number of points that tile is worth at the end of the game.

After the Master Builder has scored his points, the turn is over. The next player (clockwise) takes the Sand Timer and all 16 Tower Blocks and gets ready to begin his turn as the new Master Builder.

All other players become Saboteurs and take the number of Ammunition Dice based on the number of players. Play continues in this manner until each player has taken their turn as the Master Builder. This concludes one round.

End of the Game

After a certain number of rounds, agreed upon by the group (we recommend 3), the game is over and the players add up the points indicated on the Small Tower Tiles they scored during the game.

The player with the highest total points wins the game.

Mega Tower Tile

The Mega Tower Tile awards no points, but in the rare case that the Master Builder manages to construct this tower, and it is still standing at the end of his turn, he immediately wins the entire game.

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