Čtyřlístek CD-Romek 17: Vejce z pravěku

Vejce z pravěku or better known as Ve srubu někdo je is the 17th installment of the Čtyřlístek series, which was distributed together with the CD-Romek magazine. The interactive CD-ROM contains various PC games, the basis of which is always the adventure game Čtyřlístek, which is supplemented by various logic and action games, so that players can practice perception, memory, orientation and ecological thinking. Practicing the basics of the English language for children is also an integral part of the game.