Kaiju Crush is a light strategy game with limited grid movement, shared objectives, and intransitive combat on a modular board.
In the game, players choose one of four giant monsters to play as and proceed to smash buildings and battle other kaiju for victory points. On each player's turn, they choose to play either their own move card or the shared move card to land and smash a city tile (i.e. a building).
The player takes the city tile and places a territory marker in its place. City tiles score different points and territory markers can score victory points based on objective cards that show objectives such as connected or unconnected territory markers, number of groups of city tiles that a player claims and created shapes on the city grid.
Points are also generated by fighting either a monster on an adjacent space or a monster occupying a territory marker. To fight, players draw five territory markers and look on the back. There are five symbols that represent blows in combat: fire breath, claw, tail, kick, and spikes.
These symbols are part of an intransitive battle system, in which some symbols beat others but are beaten by others in turn. Each monster also has its own unique combat ability as well as special abilities that change with every playthrough. Winners of either battle type earn a random battle victory token worth 1-3 points.
Winners of Territory Battles also replace the current Territory Marker with their own, which can help complete objectives and thwart opponents.
When no monster can move, the game is over and the monster with the most victory points is supreme!