Ups & Downs

  • Reels: 5
  • Paylines: 20
  • RTP: 95.65%


  • Developer:

Winstones Slots

Gamesys developed the Winstones slots game. The original game was released with five reels and 20 winlines. Now there’s a sequel version called “Winstones: Mammoth Mayhem” with 1024 winlines with up to 23 free spins @ 4x multiplier.

The Winstones slot machine features a 95.65% Return to Players (RTP) with free spins bonus game and is classified as a proper ‘medium variance’ slot.

Winstones Slots Sites 2024

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MEGAWAYS casino is perhaps the best of all Winstones slots sites due to its attractive features like progressive jackpots, community jackpots, the popular MEGAWAYS casino daily free games, and a straightforward welcome bonus for new players.

This casino site with Winstones slots features both versions of the game: Winstones Slot and Winstones: Mammoth Mayhem. Minimum spins start at 1p for Winstones and 20p for the Mayhem version.

Players at MEGAWAYS casino enjoy a complete suite of Gamesys slots and games from IGT, WMS, NetEnt, Microgaming, BTG and the whole saga of Monopoly slots.

Amongst the most popular titles, you will find Winstones slots, Double Bubble slots, Double Bubble Triple Jackpot, Cleopatra slots, Immortal Romance, Amazon slots, Zeus 3 slots and Gonzo’s Quest to mention some of them.

Virgin Games

Another online casino with Winstones slots online is Virgin Games, one of the most popular gaming sites in the Gamesys Group.

What makes Virgin Games one of the best Winstones slots sites is the mix of casino and table games, online slots, free bingo games, progressive jackpots and even poker tables with tournaments.

At Virgin Games, you can play Winstones slots and Winstones Mammoth Mayhem, the latest version of the popular Flinstones-themed video slot with 1024 paylines. Unfortunately, you won’t find a progressive jackpot for the Winstones slot, but there are more than enough perks to make up for it.

Some of the best benefits of playing at Virgin Games include a hand-picked selection of Microgaming slot games and a full range of Megaways online slot machines. There are also daily double jackpots and the famous Jackpot King slots, all of which can be played in the Virgin Games mobile casino app.

Apart from these, players at Winstone’s slots site can enjoy a comprehensive VIP programme and free online slot games through the daily free games available on Daily Paper, Double Bubbly, and Search for the Phoenix games, where you can win up to £750 in real money wins and up to 50 free spins.

Double Bubble Bingo

Double Bubble Bingo is home to some of the most popular video slot games and one of our favourite Winstones sites with free bingo games and daily free games. Moreover, here you have a real chance to play slots & bingo and win real prizes like casino bonus cash and spins.

Such is the case of Doubly Bubbly (Double Bubble slot’s cousin!). This super fun slot is Double Bubble Bingo’s Daily Bonus Game, and you can play this game any day without wagering additional money.

Join and play to collect matching symbols, win real money prizes, and spin on Double Bubble Slot.


So, can you play Winstones and Winstones Mammoth Mayhem slots at Jackpotjoy? Absolutely! If you’re familiar with the Gamesys brands, you probably already know that Jackpotjoy is usually the site with the most extensive offering of video slot games.

At this site, with Winstones slots you can enjoy the most popular slot games from Gamesys in its mobile version, and the choice includes the now legendary Double Bubble mobile slot, the colourful and super fun Tiki Island slot, the High Rollers’ favourite Fortune Temple slot, the Million Pound Drop, Valley of the Kings slot, Reel Deal Diner, Reel Wild West, Winstones, Frederic vs François mobile slot, Jungle Jump slot and Fun of the Fair slot.

At Jackpotjoy casino, you can also play free bingo games with guaranteed jackpots, casino and table games, a full live casino suite and even poker tournaments with up to £100,000 in cash prizes.


Author Gil Nieto

Gilberto Nieto is a seasoned Affiliate and SEO Professional, currently leading initiatives at and other sites in the Renewable Energies sector. He previously spearheaded affiliate programs at and (from GAN). He holds an MIB and a B.S. in Industrial Design. He merges his diverse skills with hobbies in cultivating carnivorous plants and exploring new cultures with his family.