What the USD demo offers
The English demo displays a virtual USD balance, while the Russian version uses RUB. You can change the practice stake and inspect tumbles, orbs and bonus screens. Credits cannot be withdrawn, exchanged or transferred to a real account.
What changes with real money
Real-money play keeps the same slot mechanics, but every stake affects an actual balance and operator limits vary by region. A lucky demo session does not make a later real-money win more likely because the two histories are not connected.
How to use both modes
Use the demo to learn controls, pace and rules. If you choose real play, set a sum you can afford to lose completely and a firm stop time. Do not treat virtual outcomes as a strategy test.