Spin Lab free online slot with free bonus

Frequent small prizes are given by the Spin Lab online slot machine with low volatility on subject of science. Prizes on this slot give combinations with various formulas, atoms, playing cards.

Bonus images of the Spin Lab gaming machine

If the player wishes to win a prize grow larger, he has to wait for a combination with a Wild-symbol to drop on the reeland. It is preferable for 5 of such pictures to be in the set. Also this image is profitable, since it is capable to complete the combinations.
Aside from the wild symbol it is necessary for the player to try and catch three scatters in any cells of the reeland. When the necessary pictures appear in the cells, the player will receive a two-level bonus round. In the first tour the user will be able to choose the options for free-spins, and in the second the free spins will begin.