Slots from Push Gaming, the London and Malta studio behind Razor Shark, Jammin' Jars and Big Bamboo, in which LeoVegas Group took a majority stake in 2023. Six of its games compared, with both return settings the studio publishes.
From Land-Based Ports to Razor Shark
Push Gaming began in 2010 helping land-based game makers bring their slots online, and in 2015 it switched to building its own. Its signature games include Razor Shark, Jammin’ Jars, Big Bamboo and Wild Swarm. The studio works from offices in London and Ta’ Xbiex in Malta and holds licences in Great Britain and Malta, with Ontario and Romania alongside.
In 2023 LeoVegas Group, owned by MGM Resorts since 2022, took a majority stake through its LeoVentures arm. Push Gaming kept its own management, with co-founders James Marshall as CEO and Winston Lee as COO. At the time of the deal its 30 games ran at more than 200 casino operators.
Six Push Gaming Games Side by Side
Push Gaming’s own pages give two return settings for every game and, instead of a theoretical cap, the biggest win it has recorded. The table runs from the biggest recorded win down.
| Game | Volatility | RTP settings | Highest recorded win |
|---|---|---|---|
| Razor Returns | High | 96.55% or 94.49% | 100,000x |
| Big Bamboo | High | 96.13% or 94.13% | 50,000x |
| Jammin’ Jars 2 | High | 96.40% or 94.40% | 50,000x |
| Jammin’ Jars | High | 96.83% or 94.25% | 19,998.5x |
| Wild Swarm | Mid-High | 97.03% or 94.67% | 3,069x |
| Razor Shark | High | 96.70% or 94.06% | – |
Razor Shark’s page gives no recorded win.
Razor Returns
The sequel to Razor Shark holds the studio’s biggest recorded win, 100,000x. Mystery symbols nudge and reveal paying symbols, Wild Sharks or Golden Sharks, and the Golden Sharks start the Razor Reveal with Multiplier, Collector, Converter, Nudge Up and Torpedo prizes. In the free spins, mystery symbols fill reels 2 and 4 and lift the total multiplier on every spin. Its Push Bet raises the base bet by 10% to make the free spins more likely to start.
Big Bamboo
Mystery Bamboo stacks can land anywhere and reveal wilds, paying symbols or the Golden Bamboo, which gives one respin with instant prizes of up to 5,000x and multipliers of up to 10x. A Gamble Scatter starts the free spins, and a wheel then offers the chance to swap them for a better set. Its highest recorded win is 50,000x.
Jammin’ Jars 2
The sequel moves the party to an 8×8 grid with a DJ. Three or more Wild Jars bring 6 free spins, the DJ fires one to three giant fruits that burst into clusters, and filling the Gold Vinyl meter unlocks the Giga Jar, which awards 8 Giga Spins. It shares Big Bamboo’s 50,000x recorded win.
Jammin’ Jars
The 8×8 cascading original is built around the jam jar. Each jar is both wild and scatter and carries a multiplier, starting at 1x, that applies to every win it joins; three or more start the free games, and a random Rainbow Feature drops in giant fruits. More games where touching symbols pay are on our cluster pays slots page.
Wild Swarm
This 5×4, 20-line bee game has the studio’s highest return, 97.03%, and the only Mid-High label here. Three or more hives give up to 15 free spins with sticky wilds, a chest starts a pick feature, and collecting bees can set off Swarm Mode, where the sticky wilds keep coming. Other games where wilds hold their place are on our sticky wilds slots page.
Razor Shark
The game that started the Razor line plays on a 5×4 grid with 20 lines. Stacks of four mystery symbols can land on any reel, nudge and reveal, and Golden Sharks turn them into mini-reels paying multipliers from 1x to 2,500x. In the free games, reels 2 and 4 fill with mystery symbols that nudge down each spin and raise the multipliers. Our Razor Shark guide covers the game in full.
What Push Gaming Slots Have in Common
Across the catalogue, a few ideas keep coming back. Mystery symbols that land in stacks, nudge and then reveal drive Razor Shark, Razor Returns and Big Bamboo. Jars that are wild and scatter at once, each with its own multiplier, carry the Jammin’ Jars games. And the free spins usually add something that stays, from sticky wilds to a multiplier that keeps climbing.
Five of the six games are rated High by the studio itself, so long quiet spells between features are part of the design. Other games built the same way are on our high volatility slots page.
Two Returns on Every Game, in Pounds
Because Push Gaming publishes two settings, the version a casino chooses matters. Over 600 spins at £1, Razor Shark at 96.70% costs about £20 an hour on average, against about £36 at 94.06%. At the £5 limit for players aged 25 and over that is about £99 against £178, and at the £2 limit for 18 to 24-year-olds about £40 against £71. The loading screen and the game’s information panel show which one you are on.
Big Bamboo and Jammin’ Jars list a Bonus Buy for other markets. A slot in Great Britain may not charge for a shortcut to its bonus, so on British versions the free spins come from the reels alone.
