The game has only one feature – free spins feature. When you get three or more scatter symbols anywhere on the reels free spins are triggered. For three scatters you get 15 free spins, 4 scatters give you 20 free spins and all five scatter symbols give you 25 free spins. During free spins winnings will be pay out at x3 multiplier. In this feature 25 free spins is not maximum number of free spins you can get, there is not limit for free spins so you can retriggered many times.
Beside this feature there is also some wild symbols with x2 multiplier which appears during base game and also during free spins feature. But to be honest those symbols are not so great. Even if they have x2 multiplier inside it is set to low. I had many times those wilds during main game but the pay outs were still so small, never got any decent winning higher than x10 bet.
The free spins feature is ok, but nothing so special. I like that there is x3 multiplier, otherwise this feature would be so boring. I wish I could say that this game was nice to me, but it was not. I lost some money on it in a very short time and because of that I do not think I will play it again in near future. Magic crystals should have at least one more feature or bonus game. I will rate it with 6 out of 10 stars here at Askgamblers.