Santorini is a two or three-player strategy

Abstract strategy game

An abstract strategy game is a strategy game, aiming to minimise luck, and without a theme. Almost all abstract strategy games will conform to the strictest definition of: a board or card game, in which there is no hidden information, no non-deterministic elements , in which two players or teams...

 board game

Board game

A board game is a game which involves counters or pieces being moved on a pre-marked surface or "board", according to a set of rules. Games may be based on pure strategy, chance or a mixture of the two, and usually have a goal which a player aims to achieve...

 released in 2004 by Gordon Hamilton.

All profits from Santorini go towards The Museum of Cycladic Art in Athens or to improve mathematics education in Brazil.

Gameplay

Each turn of play involves moving one of your two pieces around a 5-by-5 grid each turn and then placing a tile adjacent to the moved piece, building up that spot of the board. On subsequent turns, pieces may be moved onto one of these built-up tiles, but only one level up at a time. Pieces may also be moved down any number of levels. The primary winning condition is to get one of your pieces onto level three (which would normally be four tiles high as the normal game set starts with a 5-by-5 grid of level 0 tiles). If your opponent is unable to move at all, this is also a win. Instead of placing a normal tile, you may also choose to place the special dome tile on top of a spot that is already at level 3. This would prevent any player from moving onto or building up that spot again for the remainder of the game.