Book of Oz Lock 'N Spin vs The Slotfather Book of Wins
Book of Oz Lock 'N Spin (Microgaming) and The Slotfather Book of Wins (Betsoft) share an identical published RTP of 96.60% (3.40% house edge). Choosing between them at Here2Win Casino comes down to volatility (High vs Very-high) and reel architecture (5×3 classic video grid vs 5×3 classic video grid).
Side-by-side technical & math comparison
| Parameter | Book of Oz Lock 'N Spin | The Slotfather Book of Wins |
|---|---|---|
| Studio | Microgaming | Betsoft |
| Published RTP | 96.60% | 96.60% |
| House edge | 3.40% | 3.40% |
| Studio RTP rank | #60 / 640 | #34 / 206 |
| Volatility | High | Very-high |
| Hit frequency | — | 24.68% |
| Reel grid | 5×3 classic video grid | 5×3 classic video grid |
| Pay structure | 10 paylines | 10 paylines |
| RNG testing labs | eCOGRA (co-founder), GLI | Quinel, GLI |
| Studio licences | MGA, UKGC, AGCO (Ontario) | MGA, ONJN, ADM (Italy), DGOJ (Spain), Curacao |
100, 250 & 500-Spin Bankroll Projection (A$1 stake)
| Session volume | Total turnover | Book of Oz Lock 'N Spin (Return / Cost) | The Slotfather Book of Wins (Return / Cost) |
|---|---|---|---|
| 100 spins (A$1) | A$100 | A$96.60 (edge A$3.40) | A$96.60 (edge A$3.40) |
| 250 spins (A$1) | A$250 | A$241.50 (edge A$8.50) | A$241.50 (edge A$8.50) |
| 500 spins (A$1) | A$500 | A$483.00 (edge A$17.00) | A$483.00 (edge A$17.00) |
Questions
Which has a higher RTP: Book of Oz Lock 'N Spin or The Slotfather Book of Wins?
Both Book of Oz Lock 'N Spin and The Slotfather Book of Wins publish the exact same 96.60% RTP (3.40% house edge).
How does volatility differ between Book of Oz Lock 'N Spin and The Slotfather Book of Wins?
Book of Oz Lock 'N Spin runs on a High math profile, whereas The Slotfather Book of Wins is rated Very-high.
What is the expected 500-spin house cost at A$1 per spin?
Across 500 spins at A$1 (A$500 total turnover), the theoretical house margin is A$17.00 on Book of Oz Lock 'N Spin compared to A$17.00 on The Slotfather Book of Wins.
Are both Book of Oz Lock 'N Spin and The Slotfather Book of Wins RNG-certified and playable at Here2Win Casino?
Yes. Microgaming (eCOGRA (co-founder), GLI) and Betsoft (Quinel, GLI) are independently audited HTML5 studios available at Here2Win Casino.