Lab Rat
96%
RTP
10,000x
Max Win
Bonus buy options
- Mutation Mayhem3x bet
- Free Spin100x bet
- SUPER FREE SPIN250x bet
- Min Bet
- 0.1
- Max Bet
- 1000
- Release Date
- April 14, 2026
A Stake Engine title, so there is no maker demo to embed here. On Stake it can be played without an account as Demo (Fun Play).
About this Slot
Lab Rat combines alchemy, sci-fi and humor themes with an RTP of 96%, high volatility and a maximum win of 10,000x. The game uses cascading wins triggered by five or more matching symbols forming connections.
Mutation mechanics upgrade winning clusters to higher tiers. In the base game, an X symbol triggers Mutation to upgrade the lowest winning cluster. During Free Spins, the X symbol upgrades all winning clusters instead of just one.
Four or more Scatters award 12 Free Spins. Multiplier symbols build board multipliers during Free Spins, with every column starting at a 2x multiplier that persists between spins. Landing three or more Scatters during Free Spins grants 5 additional spins.
Three bonus buy options are available. Mutation Mayhem costs 3x the bet and makes the X symbol appear every spin to upgrade all winning clusters. Free Spin costs 100x the bet to trigger the Free Spins round. SUPER FREE SPIN costs 250x the bet to launch the enhanced Free Spins mode.
Lab Rat Community RTP
Real RTP estimated from rounds contributed by the community, across all uploaders.
No measurements for this slot yet.
Your archive would be the first.
Lab Rat RTP Calculator
Lab Rat has a theoretical RTP of 96%. Its volatility is High, so expect long dry spells punctuated by rare, large multipliers. Its win potential is capped at 10,000x your stake. Use the calculator below to estimate your expected return, variance range and risk of ruin over any number of spins.
Lab Rat Variance Simulator
Lab Rat sessions can swing far from its 96% average - its volatility is rated High. The simulator runs many virtual bankroll runs to estimate the bust rate, typical drawdown and best/worst outcomes over a set number of spins - compare a cautious bankroll against an aggressive one.
All Wins
No wins on this slot yet.
Play on Stake*Frequently asked questions about Lab Rat
An RTP of 96% means Lab Rat is built to pay back around 96 for every 100 wagered over millions of spins. Any single session can land far above or below that - use the RTP calculator on this page to model your own bet size and spin count.
Over the long run Lab Rat's house edge is about 4% of everything you wager - roughly 4 lost per 100 staked. Short sessions vary widely; the calculator above shows the expected loss and variance range for your inputs.
Quite a lot. Because wins cluster around rare big hits, your balance can move far from the 96% average in either direction. The variance simulator above shows typical drawdowns, bust rate and best/worst outcomes for your bankroll.
It depends on your bet size and how long you want to play Lab Rat. Use the variance simulator above to test a cautious versus an aggressive bankroll and see how often each survives your target number of spins.
