Mainspring Heist
concrete· RTP & live stats
Published RTP
96.00%
All-time realised RTP
121.92%
Popularity on Stake
#9,912
Released on Stake
Oct 21, 2026
Mainspring Heist overview
Mainspring Heist is a slot by concrete with a published RTP of 96.00%, which means a theoretical house edge of 4.00%.
In the last 30 days Stake players placed 15.7K bets worth $10.1K on it, and it paid back 121.92% — above its published figure.
By all-time amount wagered it ranks #9,912 of 10,869 slots on Stake and #2 in the concrete catalogue.
It is a Stake exclusive, so you will not find it at other casinos.
How Mainspring Heist is paying right now
Live RTP tracker →| Window | RTP | Bets | Wagered |
|---|---|---|---|
| Last 24 hours | 80.19% | 738 | $345.1 |
| Last 7 days | 116.15% | 7.8K | $4.4K |
| Last 30 days | 121.92% | 15.7K | $10.1K |
| All time | 121.92% | 15.7K | $10.1K |
Realised RTP is what the slot actually paid back across all Stake players in that window. It is not a prediction — every spin is independent. RTP explained →
Mainspring Heist FAQ
What is the RTP of Mainspring Heist?+
The published RTP of Mainspring Heist is 96.00%. Across all Stake players it has actually paid back 121.92% all-time.
Who makes Mainspring Heist?+
Mainspring Heist is made by concrete, which has 2 slots on Stake.
Does Mainspring Heist have a bonus buy?+
No. In Mainspring Heist the bonus has to be triggered naturally.
Is Mainspring Heist only on Stake?+
Yes, Mainspring Heist is a Stake exclusive.
When was Mainspring Heist released on Stake?+
Mainspring Heist first appeared on Stake on Oct 21, 2026.
How can I get extra rewards playing Mainspring Heist?+
Sign up on Stake with code TGZZ. Every bet on Mainspring Heist then counts toward TGZZ wager milestones, the leaderboard and cashback.
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Data: Stake public game stats via bonushunt.gg, refreshed hourly. Slots are games of chance with a built-in house edge. Play for entertainment, within your means. 18+ only.