Relax Gaming New Release Face-Off: Nuclear Tumble vs Monkey Gods of the Inca
Relax Gaming is releasing two new slots back to back: Nuclear Tumble, a Tumble title where you smash stone blocks, and Monkey Gods of the Inca, where three monkey gods unlock features. Both have an RTP of 96.10%, but their grids, bonuses and max wins differ clearly. We put the two games side by side, category by category.

Key Takeaways
- Nuclear Tumble launches on October 29, and Monkey Gods of the Inca is scheduled for November 19.
- Nuclear Tumble plays on a 6×6 grid with 46,656 ways, while Monkey Gods starts on a 5×4 grid with 1,024 ways and grows to up to 7,776 ways.
- Nuclear Tumble centres on cash symbols that pay when they hit the bottom, and Monkey Gods on reel expansion, symbol transformation and wild reels unlocked by three monkeys.
- Both share a 96.10% RTP and medium-high volatility, but the max win is 5,000x versus 10,000x, a twofold gap.
Two games with opposite personalities have arrived side by side in the autumn lineup from Relax Gaming. One is Nuclear Tumble, a new entry in the Tumble series created in collaboration with CasinoGrounds. It is set on a fallout farm where a muscular bear grows giant vegetables with nuclear waste. The other is Monkey Gods of the Inca, set in the temple of a forgotten jungle kingdom. Both are ways-based video slots, but they differ from the very way wins are formed.
Grid: a Breaking 6×6 vs a Growing 5×4
Nuclear Tumble starts from a fixed size: a 6×6 grid with 46,656 ways. Instead, every spin begins with up to 25 stone blocks on the grid, and winning symbols break together with the blocks directly above, below, left and right of them. Tumbles, with new symbols dropping into the gaps, continue until wins stop. The grid size stays the same, but the usable space gradually grows as the blocks are cleared.
Monkey Gods of the Inca does the opposite: the grid itself gets bigger. The base layout is 5 reels and 4 rows with 1,024 ways. When the reel expansion feature hits, up to 2 rows are added, widening the grid to 5×6 and 7,776 ways. There are no tumbles, so each spin settles in one go, and the three monkeys sitting above the reels decide what happens on that spin.
Bonus: Drag the Cash Down or Fill the Pots
Nuclear Tumble – Cash That Pays Only at the Bottom
Coins, bombs and scatters can appear inside broken stone blocks. Cash symbols in this game have no separate collector symbol; they pay the moment they tumble down and reach the bottom row. After wins finish, bombs blast every non-cash symbol in the same row and column, clearing a path for the cash to fall. Clearing all the blocks switches on Meltdown Mode, which empties the grid except for cash and tumbles again with a higher chance of more and bigger cash values.

Three or more scatters start 6 free spins, and if a super or ultra scatter lands with them, the round begins at a higher level. There is also an option to gamble for a higher level before it starts. During free spins, every 4 cash symbols collected raises the level, increasing cash values and adding 1 spin. The lowest level, Bronze, is 1x to 5x, and the highest, Gold, is 200x to 2,500x.
Monkey Gods of the Inca – Three Monkeys, Three Features
When overlays appear on regular symbols, the pots of the monkeys above the reels fill up and features trigger at random. Reel expansion adds up to 2 rows, and symbol transformation turns 2 to 6 symbols into the highest symbol on screen. Wild reels turn 1 to 3 reels into wild reels carrying 1x to 10x multipliers. When all three features land on one spin, the wider grid, high-paying symbols and multiplier wilds all work together at once.

3, 4 or 5 scatters award 5, 7 or 9 free spins, with at least 1 feature triggering on every spin. 3, 4 or 5 gold scatters award 6, 9 or 12 super free spins, with at least 2 features guaranteed on every spin. Collecting 3 coins in the base game opens a separate Coin Bonus. 30 coins drop one by one into buckets: regular buckets pay 10x to 50x, and the Mini, Major and Mega jackpot buckets pay 250x, 500x and 1,000x. A jackpot bucket pays only once 3 coins land in it.
Side by Side in Numbers
| Category | Nuclear Tumble | Monkey Gods of the Inca |
|---|---|---|
| Release date | October 29, 2026 | November 19, 2026 (scheduled) |
| Grid | 6×6, 46,656 ways | 5×4, 1,024 to 7,776 ways |
| RTP | 96.10% | 96.10% |
| Volatility | Medium-high | Medium-high |
| Max win | 5,000x the bet | 10,000x the bet |
| Bet range | 0.20 – 200 | 0.10 – 100 |
| Bonus buy | 10x to 1,500x | 10x to 200x |
| Key features | Stone block tumbles, cash symbols, Meltdown Mode | Reel expansion, symbol transformation, multiplier wild reels |
RTP and volatility are identical. Both games are also supplied in 94%, 92%, 90% and 86% versions depending on the operator, so it is more accurate to check the RTP version separately on the game info screen. Where they split is the ceiling and the buy options. Monkey Gods has twice the max win, and its minimum bet of 0.10 is half as much.
Nuclear Tumble offers a far wider range of bonus buys. It starts with Bonus Reels at 10x, Meltdown Mode at 30x and free spins at 50x, and climbs in tight steps up to Golden Ultra Free Spins at 1,500x, where all cash comes in gold. Monkey Gods keeps it simple: Bonus Reels at 10x, a Feature Spin that opens 1 to 3 features at 25x, free spins at 60x and super free spins at 200x. Both games also have an option in the spirit of an ante bet, raising the stake to improve bonus chances.
Who Each One Suits
Nuclear Tumble suits players who enjoy following a chain reaction. Blocks break, bombs clear a path and cash drops one row at a time, all in plain view on every spin. If you have played TNT Tumble or Cluster Tumble from the same series, the flow will feel familiar. That said, plenty of spins see the cash stop just one row above the bottom.
Monkey Gods of the Inca is closer to waiting for one big combination. Overlays appear often, but spins where a feature actually triggers are rarer, so the base game runs relatively quietly. In return, the moment all three features lock together has a wide range, and the ceiling is open up to 10,000x. It shares a feel with Tiger Shrine and Glyph of Gods, which add multiplier wilds to a ways format.
Switch Between the Two in the Demo
Both games open as free demos on AI Slot with no sign-up. Check first how many tumbles it takes for the stone blocks to disappear in Nuclear Tumble, and how quickly the pots fill in Monkey Gods, and the difference in rhythm between the two shows right away.
Relax Gaming’s other new releases and series are gathered on Relax Gaming free slots.
Source: Relax Gaming official game information and screenshots, AI Slot game data