| Provider | NextGen Gaming |
|---|---|
| RTP | 95.40% - Compare RTPs |
| Volatility | Medium |
| Reels | 5 |
| Paylines | 50 |
| Bet Range | £0.01 - £25.00 |
| Hit Frequency | 32.25% |
| Max Win | 1,000x |
| Features | Wilds, Scatters, Bonus Rounds |
Mad Mad Monkey Slot Review
Mad Mad Monkey is a 5-reel, 4-row video slot from NextGen Gaming (now SG Digital, part of Scientific Games), released in July 2011. It runs 50 selectable paylines, carries an RTP of 95.41%, and sits at low-to-medium variance. The setting is a cartoon jungle - vines, thick foliage, a grinning monkey peering over the reels - cheerful rather than spectacular, but the visual tone is consistent throughout.
Game Specs at a Glance
- Developer: NextGen Gaming (SG Digital)
- Release date: July 2011
- Reels / Rows: 5 reels, 4 rows
- Paylines: 50 (selectable, not fixed)
- RTP: 95.41%
- Volatility: Low-medium
- Bet range: £0.01 - £25.00 per spin
- Max win: 1,000x line bet
The 95.41% RTP sits slightly below the modern average of around 96%. The low-medium variance compensates for that to some extent - wins land with reasonable frequency, and the session rhythm is steady rather than punishing.
Symbols and Pays
The premium symbols are a banana, a parrot, a snake, and a coconut. Both the banana and the parrot pay 1,000x your line bet for five on a line - two symbols share the top payout, which is worth knowing if you are reading the pay table. Lower down are standard A-K-Q-J-10-9 cards dressed up in a jungle style.
The scatter is the Mad Mad Monkey logo. Five scatters pay 400x your total bet regardless of payline position - it pays on any placement across the reels, which is a strong contribution even before the bonus kicks in.
The wild is the monkey itself. It appears stacked on reels 2, 3, and 4, doubles any win it contributes to, and substitutes for all symbols except the scatter. A full stacked wild reel - filling all four rows on reel 2, 3, or 4 - produces the biggest base-game wins. The wild does not pay on its own.
Super Stack Free Games
Three or more scatter symbols anywhere on the reels trigger the Super Stack Free Games. You receive 10 free spins, and all wins are automatically tripled during the feature. The stacked wilds remain active, and during free spins the banana symbol also becomes stacked across all five reels - that combination of stacked bananas and stacked wilds with a 3x multiplier gives the bonus its real win potential. A wild-assisted combination during free spins effectively applies a 6x multiplier (3x from the feature, doubled from the wild).
The free spins can be retriggered: land 3 or more scatters during the feature and you receive another 10 spins. There is no stated cap on retriggering, which opens the door to extended runs. Because scatters pay out anywhere on the reels rather than on paylines, you can trigger or retrigger the bonus even with a reduced payline selection active.
Gamble Feature
After any base game win you can choose to gamble. Guess the colour of the next card correctly (red or black) to double the win. Guess the suit correctly (one of four) to quadruple it. The gamble is limited to 5 consecutive correct picks - after which winnings are automatically returned to your balance. There is no skill involved; it is pure chance. Standard approach: protect any win above your average session bet, only gamble small wins you are comfortable losing.
Mobile Play
Mad Mad Monkey runs on desktop, iOS, and Android without a separate app. The 5x4 layout scales down cleanly on tablet and phone screens. Autoplay is available, with configurable stop conditions.
How It Compares to Other NextGen Slots
NextGen built a recognisable stable of mid-variance slots with stacked wilds and clean bonus structures during this era. Gorilla Go Wild shares the jungle theme and uses a similar stacked wild mechanic but adds a pick-me bonus on top of free spins. Foxin' Wins introduces random base-game cash features and runs at a slightly higher RTP of 95.96%. Irish Eyes 2 pushes the free spins count higher with retriggering central to its design.
Mad Mad Monkey sits in the middle of that group - no elaborate multi-stage bonus, but the retriggerable free spins with stacked bananas across all reels make it competitive within the NextGen back catalogue. Silverback Gold is the more modern take on the jungle-and-stacked-wilds formula if you want upgraded graphics alongside the same core mechanic.
Verdict
Mad Mad Monkey delivers a clean low-to-medium variance experience built around stacked wilds on three reels and retriggerable free spins with stacked bananas and a 3x multiplier. The RTP of 95.41% is a fraction below average, and the 1,000x line-bet ceiling is modest by modern standards - but the steady base game rhythm and the combined multiplier effect during free spins make it a functional choice for extended sessions. If you want to play similar NextGen Gaming slots, or browse online casinos where it is available, both are worth checking before you deposit.
Where to Play Mad Mad Monkey
These online casinos carry NextGen Gaming games including Mad Mad Monkey. Read our Lord Of The Spins review or browse all casino reviews.
Mad Mad Monkey RTP and Variance
Mad Mad Monkey has an RTP of 95.40%, which is around the industry average. See our highest RTP slots for the best returning games. Medium volatility offers a balanced mix of win frequency and payout size.
At the minimum bet of £0.01 per spin, a £10 deposit gives you 1,000 spins with a statistical expected return of £9.54. Read our slot betting strategy guide for tips on managing your bankroll.
More NextGen Gaming Slots
If you enjoy Mad Mad Monkey, try these other NextGen Gaming games available at the same casinos.
