In Krusade you roll dice to move along a track (there are a variety of paths to choose from). If you land on some spaces you collect a polyomino from a set of 18. Once you have collected 18 polyominos, you choose a challenge card and you need to use the polyominoes to create the pattern on the challenge card to win the game. While you are trying to solve the puzzle, the other players continue to play. Various locations on the board have different effects such as 'return all your pieces and start again', 'take a piece from every player', or 'swap seats with any player'. - BoardGameGeek