Dondar is a brave hero participating in a movement contest using special laser beams. In the game you participate in speed tests and fast puzzle solving.
The events of the game take place in the world of "Koidya". This is a planet whose diameter is 4.5 times larger than our Earth, but it is smaller in mass. There is almost no atmosphere on the surface, but beneath the surface it is full of caves that go many thousands of kilometers down and all the air and all life are here. This is truly a planet of caves.
Events in the game Dondar occur a thousand years before the events in the game BlackEye.
A highly developed civilization thrives here, and ancient caves are filled with many strange mechanisms.