HELL INC. cover art

HELL INC. slot: RTP and max win

By Grim Grin Studio. Released 28 Sep 2026, math version 1.
High volatilityNo. 1524 most played this month

HELL INC. is a high-volatility slot by Grim Grin Studio on Stake Engine, released 28 Sep 2026. Its base game returns 96.00%, below the median Engine slot (96.02%). The top payout is 66,666× the bet, bigger than 97% of Engine slots; from a base spin it lands about once every 11,999,954 spins. It has 4 bonus buys priced at 100× to 750× the bet; the best returns 96.00%, so each buy costs 4.00× the bet on average over the long run. It is the No. 1524 most played Engine slot over the last 30 days.

Base RTP
96.00%
catalogue figure 96.000%
Max win
66,666×
of the base bet
Max win, base spins
1 in 11,999,954
66,666× top payout per spin
Base spin pays nothing
80.0%
of spins
Players, last 30 days
697
$69K wagered (Engine Insights)

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.

ModeTypeCostRTPMax winMax win oddsPays anythingReturns the costExpected cost per round
BaseBase spin1.00×96.00%66,666×1 in 11,999,9541 in 5.011 in 100.04× base Simulate
AnteBoosted spin1.50×96.00%66,666×1 in 7,999,9911 in 5.961 in 160.06× base Simulate
Ante5Boosted spin5.00×96.00%66,666×1 in 2,400,0021 in 6.071 in 200.20× base Simulate
BonusBonus buy100×96.00%66,666×1 in 86,801every round1 in 4.574.00× base Simulate
MysteryBonus buy250×96.00%66,666×1 in 3,562every round1 in 8.2310.00× base Simulate
SuperBonus buy500×96.00%66,666×1 in 3,369–1 in 5.4320.00× base Simulate
PentaBonus buy750×96.00%66,666×1 in 3,869–1 in 6.9030.00× base Simulate

Work out the cost of HELL INC. 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.

VersionBase RTP
v196.000%Active

Frequently asked

What is the RTP of HELL INC.?

Base spins return 96.00% of the amount wagered over the long run, from the published outcome table for version 1. All 4 of its bonus buys return 96.00%.

What is the max win in HELL INC. and how likely is it?

The top payout is 66,666× the base bet. On a base spin it lands 1 in 11,999,954 spins. In the Bonus buy (100×) 66,666× lands 1 in 86,801 buys.

Does HELL INC. have a bonus buy, and what does it cost?

Yes, 4 buy modes. Bonus: 100× the base bet, 96.00% RTP, an expected cost of 4.00× the base bet per buy. Mystery: 250× the base bet, 96.00% RTP, an expected cost of 10.00× the base bet per buy. Super: 500× the base bet, 96.00% RTP, an expected cost of 20.00× the base bet per buy. Penta: 750× the base bet, 96.00% RTP, an expected cost of 30.00× the base bet per buy.

Is HELL INC. high or low volatility?

High. Its base-mode standard deviation is 25.7× 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.

Slots with similar math to HELL INC.

Matched on volatility, max win, RTP and whether there's a bonus buy. Not on theme.

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