
Play'n GO
Rise of Olympus
Rise of Olympus turns the 5x5 grid into a god-power puzzle, where cascades matter because they can unlock targeted symbol removal and multiplier pressure.
GreatSlots review · Play'n GO · 2021
Odin: Protector of Realms does not play like a standard Norse line slot. It uses a hexagonal cluster grid, collects winning symbols into a ring meter, and lets Odin's random abilities change the board when the spin needs help.

GreatSlots score
4.2/5
Best for
players who like cluster wins and visible meter progress
A readable cluster-pays option for players who want Norse theme without extreme volatility.
Odin: Protector of Realms is a medium-volatility cluster slot built around a hexagonal grid, cascading wins, and a charged ring feature.
The game uses a 37-position hexagonal grid rather than reels and paylines. Five or more matching symbols connected by edges form a cluster win, then winning symbols disappear and fresh symbols drop in.
The Ring Meter is the main progression layer. As wins collect symbols, the Bronze, Silver, and Gold Forged Ring levels can create guaranteed clusters from the center of the grid. Odin's random abilities add extra board control by upgrading symbols, removing symbol types, or adding wilds.
This is a good fit for players who want cluster mechanics that remain understandable. It also suits players who enjoy Norse presentation but do not want a brutal bonus-buy style volatility curve.
Players who need free spins as the main event may find the meter-driven design less familiar.
The mobile version is workable because the hexagonal grid is visually distinct, but the Ring Meter is worth watching closely in portrait play.

Play'n GO
Rise of Olympus turns the 5x5 grid into a god-power puzzle, where cascades matter because they can unlock targeted symbol removal and multiplier pressure.

Pragmatic Play
Zeus vs Hades is a 5x5 mythology slot where the feature choice changes the volatility profile, making it more strategic than another Zeus-themed multiplier game.

Pragmatic Play
Power of Thor Megaways is a high-volatility Norse slot where changing reels, tumbles, hammer wilds, and free-spin multipliers carry the action.
Use these nearby comparisons when RTP, volatility, or feature shape matters more than the theme.
RTP guide
RTP is useful only when it is read with volatility, max win, feature access, and the exact game version being reviewed.
Bonus guide
Free spins matter most when the trigger, retrigger rules, multipliers, and symbol upgrades are clear enough to compare before play.
Jackpot guide
Jackpot-led slots can be appealing because of the ceiling, but the review needs to separate jackpot upside from base-game value.
Megaways guide
Megaways slots need a different comparison because changing reel heights, cascading wins, and free-spin multipliers can reshape every round.
Compare jackpot-led slots where RTP and feature access matter.
Compare changing reel sets, free spins, and multiplier pressure.
Compare sharper bonus chases with longer dry stretches.
Compare faster boards built around tumbles, clusters, and simple reads.
No. It uses cluster pays on a 37-symbol hexagonal grid.
The highest commonly listed RTP version is 96.20%, though lower configured versions exist.
No. Its main feature is the Ring Meter and Forged Ring progression, supported by Odin's random abilities.