Slot reviews
[Slot review] Whale Rush — Microgaming
A cluster-pays slot starring a crowned whale calf. Published RTP 96.04%, Very high volatility, a 10,000x cap and bets of 0.20 to 20.00. This review looks at cute art sitting on top of a Very high grade, and at the two multiplier features the studio lists.
Overview
Whale Rush is an ocean-themed slot Microgaming released on 26 August 2026. The studio lists three features: Cluster Pays, Increasing Multiplier and Sticky Multiplier. Ne Zha: Triple Powers launched the same day.
This site files Whale Rush in the cluster family. About half of Microgaming's cluster titles publish a max win, and Whale Rush's 10,000x sits mid-pack among them. This review reads its figures alongside Kung Pao Panda from the same family.
Layout and rules
Cluster pays settles wins by the size of groups of matching symbols touching horizontally or vertically, rather than by fixed lines. Typically a group needs a minimum size to pay, and larger groups pay more. This title's minimum cluster size and grid dimensions are not recorded in the catalogue.
The two listed multipliers can be read by what their names generally mean. An increasing multiplier steps its value up as some condition repeats; a sticky multiplier stays in place for a stretch once it lands. Under what conditions it climbs and by how much, or where and for how long it sticks, is not published.
The published bet range is 0.20 to 20.00 — the same minimum as Kung Pao Panda (0.20 to 40.00), with half the maximum.
Free demo
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Reading the numbers
Published figures: RTP 96.04%, Very high volatility, a 10,000x cap. Kung Pao Panda lists 96.15%, High and 15,000x. The interesting part is that Whale Rush has the higher volatility grade and the lower cap. Grade and ceiling don't move together here, which shows they are different pieces of information.
Among Microgaming cluster titles with a published cap, Wrath of Seth - Split is highest at 21,000x, then Kung Pao Panda at 15,000x. Whale Rush, Mahjong Wilds Link&Merge and Lucky Twins PowerClusters follow at 10,000x. A cap is the theoretical end point, not information about how often it is reached.
At 96.04% the RTP is the lowest in this comparison, but the gap to Kung Pao Panda is 0.11 points — nothing a short session could distinguish.
Presentation
The cover shows a crowned whale calf drifting contentedly through a bubbling reef, the reef painted brighter than the surface above. It's a cheerful frame. Worth remembering: mascot-style character art says nothing about the volatility grade — the numbers have to come from the spec sheet.
A demo is available, so you can see how the two multipliers are displayed and where a sticky value stays. That's the surest way to check feature details the catalogue doesn't publish.
Strengths
- RTP, volatility, cap and bet range are all published
- Two multiplier features are named explicitly
- Easy to compare numerically with others in its family
Weak points
- Grid size and minimum cluster size are not published
- How much the multipliers climb, and how long they stick, is not published
- The cute art masks a Very high volatility grade
Verdict
Set against Kung Pao Panda, Whale Rush shows that volatility grade and max win don't have to move together. Read the grade on the spec sheet before the mood of the art.