Spikes slot: RTP and max win
Spikes is a low-volatility slot by Hio Games on Stake Engine, released 19 Aug 2026. Its base game returns 96.50%, above the median Engine slot (96.02%) and higher than 66% of them. The top payout is 250× the bet; from a base spin it lands about once every 140,625 spins. It has 3 bonus buys priced at 25× the bet; the best returns 96.50%, so each buy costs 0.88× the bet on average over the long run. It is the No. 5463 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 v1. "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 | |
|---|---|---|---|---|---|---|---|---|---|
| High | Base spin | 1.00× | 96.50% | 250× | 1 in 140,625 | 1 in 1.22 | 1 in 5.43 | 0.04× base | Simulate |
| Low | Base spin | 1.00× | 96.50% | 250× | 1 in 3,054,115 | 1 in 1.14 | 1 in 3.34 | 0.04× base | Simulate |
| Medium | Base spin | 1.00× | 96.50% | 250× | 1 in 196,178 | 1 in 1.18 | 1 in 4.21 | 0.04× base | Simulate |
| High Smaller Spikes | Boosted spin | 5.00× | 96.50% | 250× | 1 in 6,677 | 1 in 1.10 | 1 in 4.11 | 0.18× base | Simulate |
| Low Smaller Spikes | Boosted spin | 5.00× | 96.50% | 250× | 1 in 80,169 | 1 in 1.03 | 1 in 3.42 | 0.18× base | Simulate |
| Medium Smaller Spikes | Boosted spin | 5.00× | 96.50% | 250× | 1 in 6,733 | 1 in 1.06 | 1 in 3.61 | 0.18× base | Simulate |
| High Electric Ring | Boosted spin | 15× | 96.50% | 250× | 1 in 140 | 1 in 1.15 | 1 in 4.52 | 0.53× base | Simulate |
| Low Electric Ring | Boosted spin | 15× | 96.50% | 250× | 1 in 322 | 1 in 1.04 | 1 in 3.64 | 0.53× base | Simulate |
| Medium Electric Ring | Boosted spin | 15× | 96.50% | 250× | 1 in 184 | 1 in 1.10 | 1 in 4.05 | 0.53× base | Simulate |
| High Super Bonus | Bonus buy | 25× | 96.50% | 250× | 1 in 58 | 1 in 1.10 | 1 in 3.77 | 0.88× base | Simulate |
| Low Super Bonus | Bonus buy | 25× | 96.50% | 250× | 1 in 106 | 1 in 1.03 | 1 in 3.20 | 0.88× base | Simulate |
| Medium Super Bonus | Bonus buy | 25× | 96.50% | 250× | 1 in 67 | 1 in 1.06 | 1 in 3.49 | 0.88× base | Simulate |
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 | |
|---|---|---|
| v1 | 96.500% | Active |
Frequently asked
What is the RTP of Spikes?
Base spins return 96.50% of the amount wagered over the long run, from the published outcome table for version 1. All 3 of its bonus buys return 96.50%.
What is the max win in Spikes and how likely is it?
The top payout is 250× the base bet. On a base spin it lands 1 in 140,625 spins. In the High Super Bonus buy (25×) 250× lands 1 in 58 buys.
Does Spikes have a bonus buy, and what does it cost?
Yes, 3 buy modes. High Super Bonus: 25× the base bet, 96.50% RTP, an expected cost of 0.88× the base bet per buy. Low Super Bonus: 25× the base bet, 96.50% RTP, an expected cost of 0.88× the base bet per buy. Medium Super Bonus: 25× the base bet, 96.50% RTP, an expected cost of 0.88× the base bet per buy.
Is Spikes high or low volatility?
Low. Its base-mode standard deviation is 2.9× 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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