When playing Lab Leak, you can form wins with 5 or more matching symbols forming a cluster. Clusters will disappear, making way for new symbols and possible wins. Try Lab Leak in demo mode here at Stake.com first.

Is this your first time playing online slot games? Read our guides on what slot paylines are and how to play slots. Learn more about online gambling in general with the online casinos guide.

Theme & Graphics

There are so many exciting slots with popular slot themes that run on our Stake Engine RGS. Lab Leak is a pandemic-themed slot game available Only on Stake, featuring unique visuals, viruses, and fun gameplay.

There are scatter symbols, wild symbols, and other special symbols, such as collector symbols. You can choose to play manually or try auto-play, which enables you to sit back and enjoy the unique design.

Symbols & Paytable

Lab Leaks features low and high-value slot machine symbols that contribute differently to payouts. Below is an overview of how the slot pays when the bet value is set to 1.00 per spin.

Symbol	Match 5	Match 6	Match 7	Match 8	Match 9	Match 10	Match 11	Match 12	Match 13	Match 14	Match 15+
L4	0.10x	0.20x	0.30x	0.50x	0.70x	1.00x	1.50x	2.50x	5.00x	10.00x	20.00x
L3	0.10x	0.20x	0.30x	0.50x	0.70x	1.00x	1.50x	2.50x	5.00x	10.00x	20.00x
L2	0.10x	0.30x	0.40x	0.60x	0.80x	1.20x	2.00x	3.50x	6.00x	12.00x	25.00x
L1	0.20x	0.30x	0.50x	0.70x	1.00x	1.50x	2.50x	4.00x	8.00x	15.00x	30.00x
H4	0.20x	0.40x	0.60x	0.90x	1.20x	1.80x	3.00x	5.00x	10.00x	20.00x	40.00x
H3	0.30x	0.50x	0.80x	1.20x	1.50x	2.00x	4.00x	7.00x	12.00x	25.00x	60.00x
H2	0.50x	0.70x	1.00x	1.50x	2.00x	3.00x	5.00x	10.00x	15.00x	35.00x	100.00x
H1	1.00x	1.50x	2.00x	3.00x	5.00x	10.00x	15.00x	25.00x	50.00x	100.00x	200.00x

Lab Leak Features & Bonus Games

The Lab Leak slot comes with a range of bonus features, including free spins and wild symbols.

Cascading Reels

After every win, the cluster wins are removed, and new symbols fall into place to allow for more wins. The cascading reels continue until no more new winning combinations can be formed.

Virus Spread

The virus spread feature is triggered when a Virus Wild forms part of a cluster win. The infection spreads as the viruses or super viruses land. It unlocks additional hold-and-spin positions. Super viruses spread multiply to all surrounding positions. Each time a prize or virus lands, you get a hold-and-spin respin.

Free Spins

Free spins are triggered when 4 or more bonus scatter symbols land anywhere on the reels. The Virus Spread feature is also active during the free spins.

Bonus Buy Option

You can use the Buy Bonus features to skip straight to the bonus rounds instead of waiting to trigger them via the base game. Here’s a quick overview of the bonus buy options:

FS Trigger Boost - Costs 2.5x, and increases your chance of FS triggers
Virus Boost - Costs 5x, and guarantees a wild on every spin
Virus Spread Boost - Costs 30x, and guarantees a virus spread feature on every spin
Free Spins Bonus - Costs 300x

Bet Sizes, Max Win & Return to Player (RTP)

The min/max bet can be set before you start playing. Play Lab Leak with a min bet of 0.10 or a max bet of 1.000 per round. During the base and bonus rounds, a random number generator (RNG) is used to ensure things are random and fair.

It is a high volatility slot with a 96.00% return-to-player percentage (RTP). While playing Lab Leak or any other game machines, it’s best to keep an eye on your budget. The game has a low house edge of 4.00% and offers a maximum win of 10,000x your bet.

How to Deposit, Withdraw Funds to Play Slots Online & Bet Responsibly

Play Lab Leak by logging in at Stake Casino using a passkey or other secure methods. Then deposit and play using local currency options like CAD, TRY, VND, ARS, CLP, MXN, USD in Ecuador, INR, PHP, and more. Find out more from our community forum or local currency payment guide.

Play Lab Leak using any of the available cryptocurrencies, including BTC, ETH, USDT, EOS, Doge, LTC, SOL, TRX, and more. Use our integrated crypto payment system like Swap Connect and Mesh for seamless direct deposits. And get assistance from our dedicated guide for choosing the right coin.

Buy your chosen crypto using a reliable crypto exchange like Moonpay or Swapped.com . Our Swap Crypto feature enables you to exchange one crypto for another straight from your wallet.

Contact customer support for assistance with anything from securely storing Bitcoin to sorting issues like depositing and withdrawing units.

Use the Stake Vault to store funds securely while playing at Stake Casino. And read the crypto security guide for more on keeping funds safe.

Always gamble responsibly. Determine how much you can spend on betting with our monthly budget calculator and betting limit guide. Learn how to maintain control using the Stake Smart guidelines.

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Game Information

Title	Lab Leak
Provider	Twist Gaming
Game Type	Video Slot
Reels	7
Rows	7
Paylines	Cluster Pays
RTP	96.00%
House Edge	4.00%
Max Win	10,000x
Volatility	High
Min Bet	0.10
Max Bet	1000.00
Release Date	31 March 2026
Theme	Pandemic, Stake Engine, Only on Stake
Bonus Buy Available?	Yes