Free spins: working out what they are really worth
"Free spins" means two different things. One is a feature inside a slot — bonus rounds triggered by scatter symbols and built into the game's maths. The other is a promotion: a bundle of spins on a specific game handed out by the operator. This page deals with the second, and with how to estimate what such a bundle is actually worth.
A quick valuation formula
The theoretical value of a free-spins promotion is roughly: number of spins × value per spin × the game's RTP. Hypothetically, 50 spins at 0.2 units on a game with a 96% RTP have an expected return of about 9.6 units — before any wagering. A single session can land far above or below that. The point of the formula is comparison: a bundle with many spins is not necessarily worth more if each spin is tiny.
The chosen game and its volatility
The operator picks the game. Its volatility shapes what you get: on a gentle game, most bundles produce a cluster of modest, similar results; on a high-volatility game, most bundles produce little or nothing and an occasional bundle produces a lot. Open the game's info panel and, if possible, play its demo — the Sweet Samurai guide shows how to read a paytable for this.
Winnings are usually locked
Winnings from promotional spins are normally credited as bonus funds with their own wagering requirement, and often a cap on what can be converted. In other words, when the spins end, the real work begins. Calculate the wagering before you accept the offer — the method is on the wagering page.
Two deadlines
Free-spins promotions often carry two expiry dates: one for using the spins, another for clearing wagering on their winnings. Unused spins vanish, and so does unfinished bonus balance. Short deadlines create pressure to play longer than planned; do not let that pressure overrule the session limit you set.
Checklist
- Number of spins and value per spin.
- The chosen game, its RTP version and volatility.
- Whether winnings arrive as bonus funds, and the wagering on them.
- Any win cap and both expiry dates.
Other terms are explained on the bonus terms page.