The documented terms attach a 40x bonus wagering requirement to the no-deposit reward, and it helps to translate that into real play. As a purely illustrative example: if your 20 spins return 10 in bonus winnings, a 40x multiplier means 400 in total bets before that amount becomes withdrawable cash. The figure is arithmetic, not a promise of any result, and only the terms shown in your cashier govern the actual requirement.
Working through the same illustration, if a spin returns 5, the playthrough target becomes 200. Every qualifying wager on the eligible game reduces the remaining amount, and the cashier tracks progress so you can watch the balance fall toward zero. Once it clears, the winnings move from the promotional balance to withdrawable cash.
The takeaway for anyone comparing Asino Casino no deposit bonus code offers: 40x is a moderate multiplier by no-deposit standards, and with no expiry date you can complete it over many short sessions. For deposit-based codes with different multipliers, the promo code pages set out each offer's exact arithmetic before you commit.