
Grannies Vs Aliens is a high-volatility online slot from Massive Studios with an RTP of 96.70% and a maximum win of 20,000x.
Grannies Vs Aliens is an online slot from Massive Studios, with high volatility, a published RTP of 96.70% and a listed maximum win of 20,000x.
RTP varies between casino configurations and markets, so check the information screen inside the version you are playing. A maximum-win figure is a theoretical ceiling, not a likely result. How these pages are researched and what the recorded play data does and does not show is set out in our editorial policy.
18+ only. Slot outcomes are random and past results do not make a win more likely — set a limit before you start.
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Grannies Vs Aliens has an RTP (return to player) of 96.70%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Massive Studios — individual sessions can land far above or below it.
Grannies Vs Aliens is rated high volatility. High-volatility slots pay out less often, but wins tend to be bigger when they land — expect longer dry spells and larger swings to your balance.
The advertised maximum win for Grannies Vs Aliens is 20,000x. Max wins are extremely rare by design — treat them as a ceiling, not an expectation.
Grannies Vs Aliens is developed by Massive Studios and was released in 2026.
Grannies Vs Aliens plays on a 5×4 grid with 40 paylines.