In Wer war's?, known as Whoowasit? in English, players must find the magical ring that was stolen from the wise king by the evil wizard. Playing against a running clock, players move their playing pieces through the various rooms on the game board to uncover clues to who stole the precious gem. Along the way, talking animals help players solve the mystery of the stolen item with the help of a treasure chest that randomly supplies clues on behalf of the animals. Whenever players meet animals, they must feed them so the animals — that can be understood only by children — can provide the clues that advance gameplay. The clues supplied by the electronic treasure chest ensure that no two games are alike. All players must work together to find the stolen ring, and they win or lose as a group, depending on whether they can master an assigned task.
Wer war's? Limitierte Jubiläumsausgabe is a tenth anniversary edition of the 2008 Kinderspiel des Jahres winner that contains the original game described above as well as Wer war's: Das Kartenspiel.