Play Butterfly Staxx Online

Butterfly Staxx: A NetEnt Slot Built on Stacked Wins

Last updated: 2026-05-13

Quick take: Butterfly Staxx suits players who want calm, low-volatility play with a satisfying respin chain mechanic and a bonus that builds locked butterfly symbols across the reels.

Butterfly Staxx is a 2017 slot from NetEnt. It runs on 5 reels, 4 rows, and 40 fixed paylines. The RTP is 96.8%, which sits above the 96% industry average. Volatility is low — wins come regularly rather than in long bursts separated by dry spells. Bets range from €0.20 to €400 per spin, and the max win is 300x your bet. You can try butterfly staxx free play here on Slottomat with no download or account required.

Theme and Visual Design

The background is a lush garden with flowers and green foliage. The reels are transparent, letting the scenery show through. Butterfly symbols animate smoothly when they land and trigger wins. A gentle ambient soundtrack keeps longer sessions feeling relaxed rather than pressured.

Symbols and Paytable

Butterfly symbols come in five colors ranked by payout value: blue pays most, then purple, red, orange, and yellow. The Lotus Flower acts as the wild, substituting for all regular paying symbols. A golden flower is the scatter that triggers Butterfly Spins. Wins pay left to right from reel 1, requiring three or more matching symbols on a payline.

The Staxx Respin Feature

The Staxx mechanic is the core of this game. Butterfly symbols always land as full stacks covering an entire reel — not just one or two positions. When a stacked reel creates a win, those butterflies lock in place. The remaining reels respin at no extra cost.

If another matching stack lands on the respin, those butterflies lock too and trigger another respin. This continues until no new butterflies land. A full screen of the same butterfly is possible, and that is where the largest base-game payouts come from. One spin can snowball into a grid-wide sweep.

Butterfly Spins Bonus Feature

Land three or more golden flower scatter symbols anywhere on the reels to trigger Butterfly Spins. The number of spins depends on scatter count: three scatters gives 5 spins, four gives 6, five gives 7. The feature cannot retrigger once active.

During Butterfly Spins, only Cocoon symbols land on the reels. Active Cocoon symbols hatch into Butterfly symbols. Those butterflies fly to the leftmost open position on their row and stay locked there for the rest of the feature. Each spin adds more locked butterflies to the grid. The more that accumulate, the larger the payouts become as the round progresses. There are no multipliers — the payoff comes purely from locked butterfly coverage building across the reels.

This is a buildup feature, not a high-multiplier feature. Letting all 5–7 spins run usually delivers better results than a single lucky hit early in the round.

Volatility, RTP, and Player Experience

Butterfly Staxx has low volatility. The base game delivers frequent wins at modest sizes. This makes it a good fit for extended sessions without the long losing runs that high-variance games carry.

The 96.8% RTP is above average for online slots. The max win of 300x your bet is modest compared to high-variance titles, but the Staxx chain mechanic can produce meaningful base-game payouts whenever butterfly stacks lock and chain across reels.

Play Butterfly Staxx Anytime on Mobile

The game runs on phones and tablets without any download. Open Slottomat in your mobile browser and it loads directly. The transparent reels and butterfly animations hold up on smaller screens. Touch controls adapt cleanly — the spin button and bet controls are easy to tap. You get the same 96.8% RTP and full feature set on mobile as on desktop.

Tips for Playing Butterfly Staxx

1. Use the demo first: Butterfly staxx free play on Slottomat lets you see the Staxx respin chain in action before wagering real money. The mechanic is intuitive but worth experiencing.

2. Match your bet to the volatility: Low volatility means regular, smaller wins. A consistent bet size stretches sessions. Chasing rare big payouts with large bets works against a low-vol game.

3. Target scatter clusters: More scatters mean more Butterfly Spins. Five scatters gives only 7 spins, so extra spins matter. Play at a stake you can sustain until scatters land.

4. Let the respin chain run: In the base game, one locked stack can trigger several more. A single butterfly reel can chain into a full-grid sweep if matching stacks keep landing.

Pros and Cons of Butterfly Staxx

Pros:

• Calming visual design with smooth butterfly animations.

• Unique Staxx respin chain that can sweep the whole grid from a single spin.

• 96.8% RTP, above the industry average.

• Low volatility for consistent, extended sessions.

• Wide bet range (€0.20–€400) suits casual and higher-stakes players alike.

• Lotus Flower wild substitutes across all paying symbols.

Cons:

• Butterfly Spins gives only 5–7 spins and cannot retrigger.

• No multipliers during the bonus feature.

• Max win of 300x bet is modest against high-variance alternatives.

• Low volatility may feel slow for players who want high-risk swings.

Understanding the Staxx Feature and Respins

The Staxx feature is what sets Butterfly Staxx apart. Butterfly symbols always land as full-reel stacks. When a stack creates a win, it locks. The other reels respin freely.

Each locked butterfly stays put while the respin runs. If more matching butterflies land, they lock and trigger another respin. This repeats until a spin produces no new butterflies. You can build butterfly coverage row by row across the entire grid from a single base-game spin.

The NetEnt team engineered this mechanic to operate within the game's 96.8% RTP structure. For context on how certified fairness works, Gaming Labs tests and certifies slots for statistical accuracy.

Free Spins and the Butterfly Spins Mechanic

Land three or more golden flower scatters anywhere on the reels to enter Butterfly Spins. Three scatters gives 5 spins, four gives 6, five gives 7. The feature does not retrigger once active.

During Butterfly Spins, only Cocoon symbols appear. Active Cocoons hatch into Butterfly symbols, which fly left to the first open position on their row and lock there until the feature ends. Every spin adds to the growing collection of locked butterflies. More locked coverage means larger payouts on the remaining spins. The feature has no multipliers — accumulated butterfly locks are the reward mechanism.

This is a gradual-buildup bonus. The payoff grows as more butterflies lock across spins, making the later spins in the round the most valuable.

More from NetEnt

If Butterfly Staxx's calm pace and respin chain suit you, NetEnt's catalog offers strong alternatives at different tempos. Starburst shares the low-volatility feel with an expanding wild respin of its own and remains one of NetEnt's most-played games. Reel Rush also builds on a respin idea, but with unlocking reel positions rather than locking symbols — worth a look if the chain mechanic appeals to you. For more dramatic wins and an adventure setting, Gonzo's Quest uses an avalanche mechanic with climbing win multipliers. Finn and the Swirly Spin and Guns n' Roses round out a diverse set of NetEnt mechanics, all available as demos on Slottomat.