Puffer Stacks 2 slot: RTP and max win
Puffer Stacks 2 is a high-volatility slot by Titan Gaming on Stake Engine, released 22 Dec 2025. The top payout is 50,000× the bet. It has 12 bonus buys priced at 100× to 1,200× the bet; the best returns 96.34%, so each buy costs 3.66× the bet on average over the long run. It is the No. 72 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× | 96.34% | 25,000× | 1 in 3,376,159 | 1 in 4.28 | 1 in 7.13 | 0.04× base | Simulate |
| Ante | Boosted spin | 2.00× | 96.34% | 25,000× | 1 in 1,047,276 | 1 in 4.08 | 1 in 12 | 0.07× base | Simulate |
| Bonus1 | Bonus buy | 100× | 96.34% | 25,000× | 1 in 15,972 | – | 1 in 5.18 | 3.66× base | Simulate |
| Bonus1Battle | Bonus buy | 100× | 96.34% | 50,000× | 1 in 346,536 | 1 in 2.01 | 1 in 4.47 | 3.66× base | Simulate |
| Bonus1Battle Extreme | Bonus buy | 100× | 96.34% | 50,000× | 1 in 13,467 | 1 in 9.99 | 1 in 9.99 | 3.66× base | Simulate |
| Bonus1Battle Hard | Bonus buy | 100× | 96.34% | 50,000× | 1 in 47,113 | 1 in 4.00 | 1 in 4.00 | 3.66× base | Simulate |
| Bonus2 | Bonus buy | 400× | 96.34% | 25,000× | 1 in 3,717 | – | 1 in 3.46 | 14.64× base | Simulate |
| Bonus2Battle | Bonus buy | 400× | 96.34% | 50,000× | 1 in 150,686 | 1 in 2.03 | 1 in 3.70 | 14.64× base | Simulate |
| Bonus2Battle Extreme | Bonus buy | 400× | 96.34% | 50,000× | 1 in 6,072 | 1 in 10 | 1 in 10 | 14.64× base | Simulate |
| Bonus2Battle Hard | Bonus buy | 400× | 96.34% | 50,000× | 1 in 39,408 | 1 in 4.01 | 1 in 4.01 | 14.64× base | Simulate |
| Bonus3 | Bonus buy | 1,200× | 96.34% | 25,000× | 1 in 454 | – | 1 in 3.96 | 43.92× base | Simulate |
| Bonus3Battle | Bonus buy | 1,200× | 96.34% | 50,000× | 1 in 172,703 | 1 in 2.00 | 1 in 2.94 | 43.92× base | Simulate |
| Bonus3Battle Extreme | Bonus buy | 1,200× | 96.34% | 50,000× | 1 in 26,518 | 1 in 9.92 | 1 in 9.92 | 43.92× base | Simulate |
| Bonus3Battle Hard | Bonus buy | 1,200× | 96.34% | 50,000× | 1 in 39,069 | 1 in 4.01 | 1 in 4.01 | 43.92× base | Simulate |
Work out the cost of Puffer Stacks 2 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 | 96.340% | Active |
| v1 | 96.340% |
Frequently asked
What is the RTP of Puffer Stacks 2?
Base spins return 96.34% of the amount wagered over the long run, from the published outcome table for version 2. All 12 of its bonus buys return 96.34%.
What is the max win in Puffer Stacks 2 and how likely is it?
The top payout is 50,000× the base bet. On a base spin the top payout of 25,000× lands 1 in 3,376,159 spins. In the Bonus1 buy (100×) 25,000× lands 1 in 15,972 buys.
Does Puffer Stacks 2 have a bonus buy, and what does it cost?
Yes, 12 buy modes. Bonus1: 100× the base bet, 96.34% RTP, an expected cost of 3.66× the base bet per buy. Bonus1Battle: 100× the base bet, 96.34% RTP, an expected cost of 3.66× the base bet per buy. Bonus1Battle Extreme: 100× the base bet, 96.34% RTP, an expected cost of 3.66× the base bet per buy. Bonus1Battle Hard: 100× the base bet, 96.34% RTP, an expected cost of 3.66× the base bet per buy. Bonus2: 400× the base bet, 96.34% RTP, an expected cost of 14.64× the base bet per buy. Bonus2Battle: 400× the base bet, 96.34% RTP, an expected cost of 14.64× the base bet per buy. Bonus2Battle Extreme: 400× the base bet, 96.34% RTP, an expected cost of 14.64× the base bet per buy. Bonus2Battle Hard: 400× the base bet, 96.34% RTP, an expected cost of 14.64× the base bet per buy. Bonus3: 1,200× the base bet, 96.34% RTP, an expected cost of 43.92× the base bet per buy. Bonus3Battle: 1,200× the base bet, 96.34% RTP, an expected cost of 43.92× the base bet per buy. Bonus3Battle Extreme: 1,200× the base bet, 96.34% RTP, an expected cost of 43.92× the base bet per buy. Bonus3Battle Hard: 1,200× the base bet, 96.34% RTP, an expected cost of 43.92× the base bet per buy.
Is Puffer Stacks 2 high or low volatility?
High. Its base-mode standard deviation is 29.7× the bet, which puts it in the highest 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.