You can deposit money in cash via PayOp and us gift cards, which are convertible to gems:
game currency enables you to bet in Crash, Roulette, or Jackpot;
after the round is drawn, the winner is determined;
if you manage to win, funds or skins are credited to the balance;
you can now take your skins into inventory.
Withdrawing real money is not yet possible but there is a real chance to build a cool collection of skins and keys.