Free spins are one of the most common casino promotions and in-game features. This guide covers both bonus free spins (promotional) and game-triggered free spins, explaining the mechanics and real value of each.
Bonus Free Spins (Promotional)
Promotional free spins are credited to your account as part of a welcome offer, reload bonus, or standalone promotion. They let you spin specified games a fixed number of times at a set stake (usually €0.10–€0.20 per spin) without using real money. Winnings go into your bonus balance, subject to wagering requirements.
In-Game Free Spins (Bonus Feature)
Most slots have a built-in free spins feature triggered by landing scatter symbols (usually 3 or more). In-game free spins pay out as real cash, not bonus cash — no separate wagering required. They're the most valuable type of free spin in terms of immediately cashable wins.
Free Spins Value: How to Calculate It
Promotional free spin value = number of spins × per-spin value × game RTP. Example: 50 spins × €0.10 × 96% = €4.80 expected return. After 30x wagering on €4.80 winnings (€144 required bets), the expected loss from wagering at 96% RTP = €5.76 — meaning you'd expect to end up down. This is typical; free spins are entertainment, not guaranteed profit.
Wager-Free Free Spins
Wager-free (or wagering-free) free spins credit winnings as real cash with no wagering requirement. These are genuinely more valuable — any wins are yours immediately. They're offered by fewer casinos and usually come with smaller headline numbers (20 wager-free spins vs 100 standard).
Free Spins Expiry
Promotional free spins expire if not used within a set window — typically 24–72 hours after crediting, sometimes up to 7 days. Unused free spins that expire are simply forfeit. Check the bonus T&Cs for the expiry clock and use them promptly after they're credited.
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Frequently Asked Questions
Most promotional free spins are valued at €0.10–€0.20 per spin. At €0.10, 100 free spins have a gross value of €10 before wagering requirements reduce their practical worth.
Promotional free spins are always restricted to specific games listed in the offer terms. Common choices are Book of Dead, Starburst, Sweet Bonanza, and Gonzo's Quest. In-game free spins are part of the specific slot's mechanics and apply to that game only.
Winnings from promotional free spins (which go into your bonus balance) are subject to the same wagering time limit as other bonuses. If you don't meet the wagering requirement within the stated time, bonus funds and associated winnings are forfeited.
These terms are used interchangeably in the industry. 'Free spins' and 'bonus spins' refer to the same promotional feature — spins on specified games at a fixed value, credited as a promotional offer.
How Free Spins Work at Irish Online Casinos
| Feature | Typical terms | Notes |
|---|---|---|
| Spin value | €0.10–€0.20 per spin | Fixed — not the same as your bet size |
| Game restriction | 1–3 specified slots | Usually a provider's new or featured title |
| Wagering requirement | 20–50× on winnings | Some no-wager free spins exist |
| Maximum conversion | €5–€50 | Winnings above cap are removed |
| Time limit | 24 hours–7 days | Expire if unused or wagering not complete |
No-Wager Free Spins vs Standard Free Spins
- Standard free spins: Winnings are added as bonus cash requiring 20–50× wagering before withdrawal. At 5% slots edge, the expected cost of clearing 30× wagering on €20 winnings is roughly €30 — often more than the winnings themselves.
- No-wager free spins: Winnings are credited as real cash, immediately withdrawable. The expected value is the spin count × spin value × RTP (e.g. 50 spins × €0.10 × 96% = €4.80 expected value).
- No-wager free spins are significantly more valuable — always check the bonus terms before claiming.
In-Game Free Spins vs Bonus Free Spins
Bonus free spins from promotions are different from free spin features triggered inside the slot game itself (such as the Gonzo's Quest Free Falls or Starburst Re-spins). In-game free spin features have their own mechanics and multipliers set by the game developer — they are part of the game's RTP and not subject to casino bonus wagering requirements. Only the bonus free spins awarded by the casino as a promotion carry wagering terms.
Written by Mark Craic, editor at CraicBet. See how we review.