Book of Alchemist slot: RTP and max win
Book of Alchemist is a low-volatility slot by Narkoz Gaming on Stake Engine, released 20 Jul 2026. Its base game returns 96.20%, above the median Engine slot (96.02%) and higher than 57% of them. The top payout is 5,000× the bet; from a base spin it lands about once every 500,000 spins. It has 1 bonus buy priced at 100× the bet; the best returns 96.20%, so each buy costs 3.80× the bet on average over the long run. It is the No. 4797 most played Engine slot over the last 30 days.
Every mode, side by side
Costs are multiples of the base bet. Odds come from the published outcome table for v2. "Returns the cost" counts rounds that pay back at least what the mode cost. Expected cost is cost × (1 − RTP): the average amount lost per round over the long run.
| Mode | Type | Cost | RTP | Max win | Max win odds | Pays anything | Returns the cost | Expected cost per round | |
|---|---|---|---|---|---|---|---|---|---|
| Base | Base spin | 1.00× | 96.20% | 5,000× | 1 in 500,000 | 1 in 3.44 | 1 in 16 | 0.04× base | Simulate |
| Superspin H1 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 56,377 | 1 in 11 | 1 in 21 | 0.38× base | Simulate |
| Superspin H2 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 4.65 | 1 in 8.81 | 0.38× base | Simulate |
| Superspin H3 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 2.43 | 1 in 4.70 | 0.38× base | Simulate |
| Superspin H4 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 3.72 | 1 in 5.60 | 0.38× base | Simulate |
| Superspin L1 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 1.20 | 1 in 6.11 | 0.38× base | Simulate |
| Superspin L2 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 1.23 | 1 in 9.21 | 0.38× base | Simulate |
| Superspin L3 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 1.21 | 1 in 6.46 | 0.38× base | Simulate |
| Superspin L4 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 1.21 | 1 in 5.83 | 0.38× base | Simulate |
| Superspin L5 | Boosted spin | 10× | 96.20% | 5,000× | 1 in 50,000 | 1 in 1.23 | 1 in 6.16 | 0.38× base | Simulate |
| Bonus | Bonus buy | 100× | 96.20% | 5,000× | 1 in 5,000 | – | 1 in 3.69 | 3.80× base | Simulate |
Work out the cost of Book of Alchemist bonus buys at your bet size
Version history
Base-mode RTP per published math version. Older versions stay public in the fairness API, so changes can be checked.
| Version | Base RTP | |
|---|---|---|
| v2 | 96.200% | Active |
Frequently asked
What is the RTP of Book of Alchemist?
Base spins return 96.20% of the amount wagered over the long run, from the published outcome table for version 2. Its bonus buy returns 96.20%.
What is the max win in Book of Alchemist and how likely is it?
The top payout is 5,000× the base bet. On a base spin it lands 1 in 500,000 spins. In the Bonus buy (100×) 5,000× lands 1 in 5,000 buys.
Does Book of Alchemist have a bonus buy, and what does it cost?
Yes, 1 buy mode. Bonus: 100× the base bet, 96.20% RTP, an expected cost of 3.80× the base bet per buy.
Is Book of Alchemist high or low volatility?
Low. Its base-mode standard deviation is 10.1× the bet, which puts it in the lowest third of Engine games. What volatility means.
Can I check that a result was fair?
Yes. Engine games use provably fair seeds. Once your server seed is revealed you can replay any round against the published outcome table. See how to verify a result.
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