Key Facts
Grimoire of the Deep is an online slot from 4phantom with an RTP of 95.90%.
- Provider
- 4phantom
- RTP
- 95.90%
Page updated July 2026
Where to Play Grimoire of the Deep
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Game Review
So 4phantom made this game called Grimoire of the Deep, and it's actually really good. standard volatility, 95.90% RTP, wins go up to N/A.
Grimoire of the Deep FAQ
What is the RTP of Grimoire of the Deep?+
Grimoire of the Deep has an RTP (return to player) of 95.90%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by 4phantom — individual sessions can land far above or below it.
Who makes Grimoire of the Deep?+
Grimoire of the Deep is developed by 4phantom.
Tech Specs
Specs compiled from provider data
