Big Blox
Rainforest slot centered on randomly enlarged matching-symbol blocks
0.5% of the games we track list Colossal Symbols; Big Blox is one of them.
The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.
Why this score
High confidence (100%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.
SlotRanker Score: 62 — Big Blox by Yggdrasil Gaming
https://slotranker.com/yggdrasil-gaming/big-blox#scoreSlot Summary
How It Plays
There are no selectable paylines. Instead, matching symbols connect from the leftmost reel across consecutive reels, with 243 possible ways evaluated on each spin.
The oversized block can cover several adjacent positions and changes them into one matching symbol. Its random dimensions determine how much of the grid is unified before wins resolve.
Theme & Atmosphere
Ancient stone figures place the Action & Adventure premise inside an Aztec and Jungle setting. The rainforest framing gives the oversized blocks the appearance of carved monuments.
Mythology, Native, and Nature cues support the stone-god imagery, while Sea elements widen the environment beyond dense vegetation. The theme remains secondary to the expanding block effect.
Features & Win Potential
Colossal Symbols can expand across multiple positions and may fill the complete 5x3 grid. Every covered position then counts as the displayed symbol during evaluation.
The Wild Symbol can also participate in the oversized-block behavior, creating a larger substituting area. Its value comes from coverage rather than a separate multiplier or respin sequence.
True Cost to Play
Expected average based on this slot's 96.2% RTP — individual sessions vary with volatility.
Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.
Bankroll survival simulator
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Compare Big Blox with other games
 Big Blox Score 62This game |  Aztec's Claw Wild Dice Score 71 |  Spinanga Score 52 |  Ancient Island Megaways Score 81 |  Blazing Sun Score 76 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | Pragmatic Play This provider has been reviewed and approved by the SlotRanker team. What does this mean? | ||||
| Released | 8/19/2016 | 9/26/2024 | 10/10/2022 | 2/10/2025 | 10/1/2024 |
| Math | |||||
| RTP | 96.2% | 96.1% | 94.74% | 96.55% | 96.02% |
| Volatility | Medium volatility | Medium volatility | Medium volatility | High volatility | Medium volatility |
| Max win | 3,888× | 6,000× | 6,000× | 10,000× | 1,000× |
| Format | |||||
| Reels | 5 | 5 | 5 | 6 | 5 |
| Layout | 5x3 | 5x3 | 5x3 | 6x7 | 5x3 |
| Paylines | 243 | 20 | 20 | 117649 | 25 |
| Min bet | 0.01 | 0.2 | 0.2 | 0.2 | 0.25 |
| Max bet | 4 | 20 | 60 | 240 | 125 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | — | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | — | ✓ | ✓ | ✓ | ✓ |
| Multiplier | — | ✓ | — | ✓ | ✓ |
| Bonus game | — | — | — | — | ✓ |
| Respins | — | — | — | — | ✓ |
Every number is shown as a delta against Big Blox.
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Questions & Answers
Big Blox FAQ
Three or more matching symbols on consecutive reels form a win from the left under the game’s 243 Ways system.
It randomly enlarges a symbol block and converts every covered position into the same symbol, potentially filling all 15 grid positions.
No Free Spins feature is listed. The game concentrates its extra behavior in the Colossal Symbols and Wild Symbol.
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