Rocket Reels slot review

Rocket Reels slot: the short version

Rocket Reels comes from Hacksaw Gaming, a studio that launched in September 2018, is based in Malta and is best known for Wanted Dead or a Wild. Its parent, Hacksaw AB, listed on Nasdaq Stockholm on 25 June 2025, and the studio holds a Gambling Commission licence for Great Britain.

The game is a space-themed cluster slot built around chain reactions: wins cascade away, rockets clear more of the grid, and multipliers left behind can stack up. It's a high-volatility game, so most of its return is concentrated in less frequent, bigger results. See how it fits with other games in our slots hub.

How the features work

Cascades and clusters. A cluster of five or more matching symbols pays, the winning symbols disappear, and new ones fall in, which can create further wins in the same sequence. Wilds also appear on the grid and help complete clusters.

Main feature: rockets. In the base game, if three or more rockets are on the grid, they launch at the end of the cascade. Each launch clears the symbols above the rocket and leaves a multiplier behind. When a winning cluster then forms over multipliers, the multipliers add together rather than multiply, and the total applies to that win.

The UFO. After a launch, a UFO can appear at random and remove symbols from the grid, which makes room for new symbols to drop in.

Free spins. Landing three astronaut scatters within a single cascade sequence triggers eight free spins. The key difference from the base game: during free spins, every rocket that lands launches, not just groups of three or more. That's what gives the round its higher potential.

Exact multiplier values and how they persist are set out in the game's help screen. We describe only the mechanics the published specifications confirm.

A Rocket Reels base-game sequence, step by step

The order of events is easier to follow written out. This is how one base-game spin plays through, based on the mechanics above:

1. You spin and the 7×7 grid fills.
2. Any clusters of five or more matching symbols pay and are removed.
3. New symbols fall into the gaps, and any new clusters pay in turn.
4. When the cascades stop, if three or more rockets are on the grid, they launch.
5. Each rocket clears the symbols above it and leaves a multiplier; a UFO may then remove more symbols.
6. Symbols refill, and any winning cluster that forms over multipliers gets their added-up total.
7. If three astronaut scatters appeared during the sequence, eight free spins follow.

Under UK rules each spin takes at least 2.5 seconds, and the app can't offer a turbo button or slam-stop to rush the sequence.

Rocket Reels RTP and max win in pounds

With a 96.3% RTP, standard game maths gives an expected loss of £3.70 per £100 staked over the long run. At 10p a spin and the fastest pace UK rules allow (1,440 spins an hour at 2.5 seconds each), that's £144 staked and about £5.33 expected loss an hour.

The 10,000x maximum win is a ceiling, not something to plan around. Here's what it means at different stakes:

The chance of reaching the top prize isn't published, and on a high-volatility game it is very small. Always check the RTP figure in the game's help screen too; our guide on finding RTP in an app shows where.

Rocket Reels on a £20 budget: 10p, 50p or £1

High volatility changes how a small budget feels. At 10p you get 200 spins from £20; at 50p, 40 spins; at £1, just 20. The expected loss on £20 of stakes is the same at all three, about 74p (£20 × 3.7%), but the range of outcomes widens sharply as stakes rise.

At £1, 20 spins may produce no meaningful win at all, and the free spins may not appear. At 10p you're more likely to see rocket launches and the odd larger cascade, though the budget can still run out. Our low-stakes casino games page has more on stretching a fixed budget.

Why there's no bonus buy on Rocket Reels in UK apps

Some players look for a way to pay straight into the free spins. Since a Gambling Commission warning in January 2020, feature buy-ins are not offered to British players. The Commission's games warning for online operators (opens in a new tab) followed its discovery of six operators offering them, all of which removed the feature.

So on a UK app, Rocket Reels' free spins come only from landing three astronaut scatters in a cascade sequence. Autoplay is also unavailable, in line with the slot design rules in the Commission's responsible product design standard (opens in a new tab). Read our game design rules page for the full list.

Rocket Reels on iPhone and Android

Rocket Reels runs inside casino apps and mobile browsers on iPhone, iPad and Android. A 7×7 grid is dense on a phone, and rocket launches plus cascades mean a lot of movement on screen at once.

If the activity is hard to follow, a tablet helps. Check your Android phone settings or our iPhone guide for display and notification options, and read about casino apps and battery life if you play away from a charger.

Similar slots to Rocket Reels

For more grid-based games, our cluster pays glossary entry explains the mechanic, and the best slot apps list compares the apps with the widest slot ranges.

Where to play Rocket Reels with a welcome offer

We can't confirm Rocket Reels is in our partners' lobbies, so search for it in the app first. These three are slot offers for new customers aged 18+, and terms apply.

PlayOJO offers 80 free spins on Big Bass Bonanza (not Rocket Reels) for a first deposit of £10 or more, for new UK customers outside Northern Ireland. Spins are 10p each and winnings are cash with no wagering; it's only available through the designated link and can't be combined.

With Coral Casino, betting £10 on slots between 1 October 2026 and 1 February 2027 gets new players 100 free spins at 10p on selected games: 48 hours to accept, 7 days to use, no wagering on winnings. Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards don't count.

Ladbrokes Casino gives up to 500 free spins: 50 a day for 10 days at 10p on selected games after a £10 slots spend. Claim by 23:59 each day; each batch lasts 7 days and has no wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits are excluded. If gambling stops being fun, the National Gambling Helpline (0808 8020 133) is free through GamCare's support service (opens in a new tab).

18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.