Star Clusters Megaclusters

Q: What is the RTP?

The official RTP is 96.53%, top tier for the market.

7.6/10

Release June 2020· Updated September 2026

The first-ever Megaclusters slot by Big Time Gaming (April 2018) — RTP 96.53%, max win 23,960x. BetsRank score: 7.6/10.

RTP

96.53%

Volatility

High

Max Win

23 960x

Grid

4x4 expanding to 8x8 (Megaclusters)

Bonus Buy

Yes

Megaclusters mechanic (premier slot)Tiles split in 4 smallerCluster paysCascading winsFree Spins expanded grid 8x8

7.6

BetsRank Verdict

Our read of the game, based on the data the studio publishes

The FIRST-EVER Megaclusters slot from Big Time Gaming (April 2018) — the title that founded the Megaclusters format. Top-tier RTP 96.53%, max 23,960x. Grid 4x4 expanding to 8x8 in Free Spins (theoretically 16x16 with splits = 256 Megaclusters). Cosmic space theme.

Strengths

+The FIRST-EVER BTG Megaclusters title (format founder)
+Top-tier RTP 96.53%
+4x4 grid expanding to 8x8 in Free Spins
+Cluster pays plus cascading wins

To consider

−20 max bet cap limits high rollers
−High volatility
−No Bonus Buy option

About Star Clusters Megaclusters

Released on 19 April 2018, Star Clusters Megaclusters is the very first Megaclusters slot ever created by Big Time Gaming — the studio's invention of this signature format (alongside Megaways in 2016). Top-tier RTP of 96.53%, high volatility, max 23,960x. Cosmic space theme with stars, planets, and galaxies.

The Megaclusters mechanic: a 4x4 grid in the base game (16 tiles). When a cluster wins, every winning tile splits into 4 smaller tiles — the grid can reach up to 64 Megaclusters maximum in the base game. In Free Spins, the grid expands to 8x8 — with successive splits, it can theoretically reach 16x16 = 256 Megaclusters maximum.

Classic cascading wins: winning tiles disappear and new ones fall in. Stakes from 0.20 up to a 20 cap. The 23,960x max is reached through a combination of a saturated 8x8 Free Spins grid, maximal splits, and cumulative multipliers. Bonus buy available: 50x the stake.