🇬🇧 UK Players 🕐 Updated daily ⚡ New slots weekly NEW
Privacy Policy Contact 18+ | Responsible Gaming
Sign In Join Free
Join Free
NetEnt · Slot Review

Wild Worlds — Full Review & Free Demo

3.6/5
Play for Real →
RTP
96.47%
Volatility
Average
Max Win
2,500x
Provider
Reels
5
Paylines
Cluster Pays
Bet Range ($,€,£)
0.2 - 400
Rating
3.6/5
Released
Apr 2019

Wild Worlds overview

Wild Worlds from NetEnt runs on a 5x5 layout with Cluster Pays and Avalanche reels. The setup is built around superhero symbols, random screen manipulation and a three-stage Free Spins system. From a math perspective, the numbers tell you this is a medium-volatility game with a 96.47% RTP and a 2500x top exposure in most reviews.

Wild Symbols for Wild Winnings

Regular wins are formed with clusters of three or more matching symbols, horizontally or vertically. Some reviews also mention diagonal wins, but the consistent point is the Cluster Pays engine and the way Avalanche sequences recycle the grid after each hit. Looking at the paytable structure, the crown is the top regular symbol and pays up to 100x for five of a kind, which is also the quoted top value for five wilds.

Hero symbols are the key part of the symbol model. When a winning cluster includes one of the three heroes, all remaining matching hero symbols turn into wilds. I see that as the main chain-extension mechanic in the base game, because it can create follow-up clusters after the collapse. Wilds substitute for regular symbols, while scatters trigger the bonus on 3 anywhere.

Symbol Payouts

icon 1
Wild
5x100
4x25
3x5
icon 2
5x100
4x25
3x5
icon 3
5x15
4x5
3x1
icon 4
5x15
4x5
3x1
icon 5
5x15
4x5
3x1
icon 6
5x4
4x1
3x0.25
icon 7
5x4
4x1
3x0.25
icon 8
5x4
4x1
3x0.25
icon 9
Scatter

Wild Worlds bonus features

Base game extras are direct and fairly transparent. Destroy Feature can trigger after a losing spin, removing all symbols except scatters and one randomly selected colour, then refilling the grid for another chance at a cluster. That keeps dead spins lower than the raw hit rate suggests. Hero Wilds are active here too, so the base game can produce longer-than-expected Avalanche chains.

Three scatters award 8 Free Spins. You enter one of three worlds: Dark Forest, Ice World, or Fire Lands. Each world has a different modifier after a monster is destroyed. Dark Forest adds spreading wilds, Ice World adds a stack of two wilds, and Fire Lands adds 2 to 4 random wilds. From a math perspective, that means the bonus has variable conversion paths rather than one fixed reel modifier.

Monster progression is what makes the feature more than a standard free spins round. Captains have 15 health points, the Boss has 105, and wins with hero symbols charge hero meters for stronger attacks. Once all Captains are beaten, the Boss becomes vulnerable. Beat the Boss and the feature re-triggers with 8 more spins in the next world. The base game can drag a bit, but this is where the slot earns its complexity.

Bonus Buy Options

Bonus Buy <nlp>Destroy Feature</nlp>
Destroy Feature
Can trigger after a losing spin and removes all symbols except scatters and one randomly chosen colour, then new symbols drop in.
Bonus Buy Hero Wilds
Hero Wilds
When a winning combination includes a hero symbol, all remaining matching hero symbols on the grid turn into wilds.
Bonus Buy <nlp>Free Spins</nlp>
Free Spins
Triggered by 3 scatters and awards 8 free spins in one of three worlds, with monster battles, hero attacks and world-specific wild modifiers.

Wild Worlds RTP, variance & technical data

96.47% RTP puts Wild Worlds slightly above the long-run market average, and reviews classify volatility as medium. One source lists a 21% hit frequency, which fits the design, frequent enough to keep reels active, but not high enough to flatten the bonus dependency. Bets run from 0.20 to 400, and the slot is available on mobile and tablet.

Max win data is inconsistent. Most reviews quote 2500x, while one official source shows 600xBet. I am not entirely sold on that discrepancy, so I would treat the ceiling with caution. Either way, the game is not built for extreme top-end hunting. The numbers tell you it is more about layered feature EV and repeatable medium-sized bursts than a single outsized peak.

💬 What Players Say
Reviews consistently praise the three-world free spins structure and the amount of action in the base game. The main criticism is that the feature set can feel crowded, and the 2500x ceiling is not high by current standards. Based on 5 reviews.
Ryan Cole’s Verdict

Final Result

Overall, I see Wild Worlds as a feature-dense medium-volatility cluster slot with better structure than its age suggests. The core loop is simple, cluster wins and collapses, but the bonus turns that into progression, target damage and world-specific wild placement. That gives the game a mechanical identity, not just a theme skin.

Best fit is for players who want active reels and a bonus round with moving parts, not for players chasing massive headline potential. The free spins system is the reason to play. The modest top-end, and the slightly cluttered presentation, are the main trade-offs.
3.6
★★★★☆
out of 5
✓ Pros
Three distinct free spins worlds
Destroy feature adds second chances
Hero Wilds can extend avalanches
96.47% RTP is solid
Clear 5x5 cluster pays setup
✗ Cons
Base game can feel busy
Medium volatility limits peak swings
Max win is modest today
Bonus Buy claim is unclear
Ryan Cole
Ryan Cole
Lead Casino Slots Analyst
5+ years analysing online slots for the UK market. Every game is played for a minimum of 500 demo spins before publication. No affiliate bias — ever.
View All Reviews →
Wild Worlds FAQ
How do free spins start in Wild Worlds?
You need 3 scatter symbols anywhere on the grid. That awards 8 free spins and sends you into one of the three bonus worlds.
What changes between Dark Forest, Ice World and Fire Lands?
Each world has its own wild modifier after a monster is destroyed. Dark Forest adds spreading wilds, Ice World adds a stacked pair of wilds, and Fire Lands adds 2 to 4 random wilds.
How do Hero Wilds work in the base game?
If a winning cluster includes one of the hero symbols, all remaining symbols of that same hero type on the grid transform into wilds. This can extend an Avalanche sequence and create extra clusters on the same paid spin.
What does the Destroy feature actually do?
After a losing spin, it can remove every symbol except scatters and one randomly chosen colour. New symbols then drop into the empty spaces, giving you another chance to connect a cluster.
Is there a Bonus Buy in Wild Worlds, and what does it cost?
One review flags Bonus Buy as available, but no source gives a price or explains the purchase model. I would not assign any EV to a buy option here without confirmed cost data.