Vovka is another great slot game presented at Thunderbolt Online Casino. What is so interesting about this slot machine? Firstly, it’s the idea which brings the Russian folklore to life in the form of a slot machine and it’s awesome. Secondly, it’s the process of gaming and wins, of course. You don’t need to puzzle over this game, everything is more than simple. The basic choice of colors in the design along with the simplicity of a playtable is exactly what attracts attention of players. Reels, playlines, control buttons – these components are well-known for each person who has played slot game at least once in their life.