Free spins: putting a price on every spin
Free spins look like the simplest promotion: a set number of spins on a chosen slot, no stake taken from your balance. But "free" describes only the stake. Winnings from free spins usually land as bonus money with wagering, a time limit and sometimes a cashout cap. Here is how to value a spins package — bonus spins, extra spins or the classic "50/100 free spins" — before using it at 389win.
Nominal value
Start with the value per spin, which the offer fixes. Fifty spins at 0.20 units each put 10 units into play. Expected return equals that amount times the slot's RTP: about 9.68 units on a 96.75% game, 9.40 on a 94.03% one. That is the theoretical ceiling of what the spins deliver before any wagering.
When winnings carry wagering
| Step | Calculation | Result |
|---|---|---|
| 50 spins at 0.20 | 50 × 0.20 | 10 units staked |
| Average return at 96.75% | 10 × 0.9675 | ≈ 9.68 units |
| Wagering 20x on winnings | 9.68 × 20 | ≈ 193.6 units of bets |
| Expected cost of wagering | 193.6 × 3.25% | ≈ 6.29 units |
| Expected value | 9.68 − 6.29 | ≈ 3.39 units |
Illustrative example, not a 389win term. Fifty spins end up worth about three units on average when winnings carry 20x wagering — the rule on winnings matters more than the spin count. See wagering.
Eligible slots and volatility
Spins are tied to one slot or a short list. On a high-volatility game most spins pay nothing and the result hinges on triggering a feature; on a low-volatility one, wins come in small, frequent pieces. In a 50-spin package, high volatility turns the outcome into a lottery: zero or a hit larger than the whole package. Read the game page first — for example Zombie Blasters or Piggy Brick Bonanza.
Using spins before they expire
- Find where the spins appear — a promotions tab or directly inside the eligible slot.
- Note two deadlines: one to use the spins, one to clear wagering on winnings.
- Do not change the stake if the game lets you; the offer usually fixes it.
- After the spins, check whether winnings sit in the bonus wallet and how much turnover applies.
- Note any max cashout on spin winnings.
Free spins with no deposit
No-deposit spins usually come with stricter terms: higher wagering on winnings and a cashout cap that trims exactly the rare big win that would make the offer worthwhile. Same calculation, plus the cap — details on the no deposit bonus page.
Promotional spins versus in-game free spins
Promotional spins come from the operator. In-game free spins are a slot feature, triggered by scatter symbols during normal play, using your current stake, with winnings paid to the balance you were already using. Piggy Brick Bonanza, for instance, lists free spins among its mechanics in our sources — that is game design, not a promotion.
More bonus guides: Wagering · Welcome bonus · Reload bonus · Free spins · No deposit bonus · Promo codes · Cashback · VIP program · Refer a friend · Bonus terms