A “free spin” is a spin on a specific slot at a fixed stake, awarded as part of a promotion. The mechanics differ across UK operators.
The main types
- No-deposit free spins: rare in the UK now, but they require no deposit and serve as a casino tester. Win caps are tight.
- Welcome free spins: bundled with a first deposit, usually spread over several days.
- Reload free spins: rewards for existing players on certain deposits.
- Game launch spins: bonus spins tied to a new slot release.
- Loyalty spins: awarded as part of VIP or tier programmes.
Common terms
- Wagering on winnings: usually 30x–40x.
- Win cap: caps the maximum withdrawable from spin winnings.
- Eligible game: spins work on one slot, not your choice of game.
- Spin value: typically £0.10 each.
- Expiry: 24–72 hours is common.
What to compare
Calculate the maximum real value: spin count × spin value, minus expected RTP losses, minus the impact of wagering. A “100 free spins” offer at £0.10 with 60x wagering and a £100 cap is often worth less than 20 spins on clean terms.
When free spins are worth it
When wagering is sub-40x, win cap is generous or absent, and the spins land on a slot you would play anyway.