| Provider | NetEnt |
|---|---|
| RTP | 96.30% - Compare RTPs |
| Volatility | High |
| Reels | 5 |
| Paylines | 25 |
Evolution is a 5-reel, 25-payline video slot developed by NetEnt and released in 2015. The game takes its theme from the natural world, sending you back to prehistoric times where single-celled organisms gradually transform into more complex creatures as you play. It is a medium-volatility slot with an RTP of 96.3% and a maximum win of 44,000 coins.
One thing that sets Evolution apart immediately is the direction of the reels - they spin from bottom to top rather than the conventional top to bottom. It is a small touch, but it gives the whole game a slightly alien feel that suits the theme well.
Reels, Paylines and Betting Range
Evolution plays on 5 reels, 3 rows, and 25 fixed paylines. Wins pay left to right from the leftmost reel. Bet sizes run from 0.25 up to 125.00 per spin, giving you a wide range to work with whether you are testing the waters or playing with more confidence.
Symbols are split into two tiers. The lower-value symbols are primitive single-celled organisms: Blobulus astrum, Primo blobulus, Jellocus finnum, Jellocus squidae, and Crustacio springum. Higher-value symbols are more evolved creatures - snails, mice, squirrels and similar. Landing five of the top-paying symbol on a payline delivers the largest standard payout.
RTP and Volatility
The RTP sits at 96.3%, which is comfortably above the industry average of around 95-96%. That extra fraction adds up over long sessions. Volatility is classed as medium, meaning wins come at a reasonable frequency without the extreme dry spells you get from high-variance games. You can expect a mix of smaller regular hits and the occasional bigger payout, rather than boom-or-bust swings.
The maximum payout is 44,000 coins. That is the ceiling for a single spin, and while it is not the biggest jackpot you will ever see, it is a meaningful number for a NetEnt release from this era.
The Evolution Feature
The game's headline mechanic is the Evolution Feature, which only activates during the Free Spins round. When you land a winning combination, the lower-paying symbols involved begin to evolve - they literally transform into higher-value symbols on the reels. The process mirrors the evolutionary ladder: primitive organisms become more complex creatures, and those creatures pay out at higher rates.
What this means in practice is that your reels progressively fill with better symbols as a free spins session continues. Early in the bonus round you are hitting wins with crustaceans and blobs; by the time you are deep into a good run, those reels are populated with the higher-paying evolved symbols. It is a clever system that creates genuine momentum and a sense of escalation through the bonus.
Free Spins
Free spins are triggered by landing three or more Scatter symbols anywhere on the reels. The Scatter symbol resembles a firefly-lit version of the game's logo letters:
- 3 Scatters: 10 free spins
- 4 Scatters: 15 free spins
- 5 Scatters: 20 free spins
During free spins, the Evolution Feature is active. Every winning spin triggers symbol evolution, meaning the value of the symbols on your reels keeps climbing as the bonus plays out. The longer the bonus runs without stalling, the stronger your reel composition becomes. Scatters can retrigger the feature during free spins, adding more spins and extending the evolution chain.
Wild Symbol
Evolution includes a Wild symbol that substitutes for all regular paying symbols. It does not substitute for Scatters. Wilds can appear on reels 2, 3, 4, and 5. They do not have expanded or sticky properties in the base game, but they contribute to the evolution chain when they form part of a winning combination during free spins.
Mobile Play
Evolution was built in HTML5, so it runs in any modern mobile browser without needing an app or download. The prehistoric visuals translate well to a smaller screen - the creature symbols are distinct enough to read clearly on a phone display. The bottom-to-top reel spin looks particularly fluid on mobile. Landscape orientation gives you the full reel grid comfortably; portrait is workable but more compact.
Is Evolution Worth Playing?
Evolution earns its place in a slot portfolio on the strength of its bonus mechanic. The symbol evolution system during free spins is genuinely well-designed - it creates a snowball effect where a good bonus round keeps getting better rather than just running through a fixed number of spins at a fixed symbol value. Combined with a solid 96.3% RTP and medium volatility, the base maths make this a reasonable choice for regular play rather than just a novelty.
Where the game shows its age is in the base game itself, which can feel pedestrian between bonus triggers. The creature theme is imaginative but the standard reel action is fairly conventional. If you are drawn to frequent small wins and constant action, Evolution might feel slow between bonuses. But if you are willing to sit through a few hundred spins for the payoff of a well-built free spins round, it delivers consistently.
For players interested in other NetEnt titles, the NetEnt software page covers the full range available at the casinos we review.
Who made the Evolution slot?
Evolution was developed by NetEnt and released in 2015. It is a prehistoric-themed video slot, not connected to Evolution Gaming, the live casino provider.
What is the RTP of the Evolution slot?
The Evolution slot has an RTP of 96.3%, which is above the typical industry average and makes it a reasonable choice for regular play.
How do you trigger free spins in Evolution?
Free spins are triggered by landing three or more Scatter symbols anywhere on the reels. Three Scatters award 10 free spins, four award 15, and five award 20.
What is the Evolution Feature?
The Evolution Feature activates during free spins. Each winning spin causes the lower-paying symbols involved to evolve into higher-value symbols, progressively improving your reel composition through the bonus round.
What is the maximum win on the Evolution slot?
The maximum win on the Evolution slot by NetEnt is 44,000 coins.
Is Evolution a high volatility slot?
No, Evolution is a medium-volatility slot. Wins come at a reasonable frequency, avoiding the long dry spells associated with high-variance games, while still offering meaningful payouts.
Where to Play Evolution
These online casinos carry NetEnt games including Evolution. Read our Donbet review or browse all casino reviews.
Evolution RTP and Variance
Evolution has an RTP of 96.30%, which is above average. See our highest RTP slots for the best returning games. High volatility means wins come less often but tend to be significantly larger. Explore our high volatility slots guide.
More NetEnt Slots
If you enjoy Evolution, try these other NetEnt games available at the same casinos.
