Das Pferd von Troja (1993)

from the translation:

Just as in the ancient saga of the Trojan War, brave Greek heroes hide in the belly of a gigantic horse. The playing figures slip into the horse from above and leave it from below, in order to occupy the individual districts of Troy. Cunning and malice in dealing with the Trojan Horse lead to victory - in the mythical story as well as in this game!