Spin into summer with the hottest online slots at Casushi! Whether you're after fiery themes or bonus-packed features, we’ve hand-picked this year’s top slot games to bring sunshine to your screen. These games are new, exciting, and perfect for players looking to heat up their gameplay.
Big Bass Boxing (Pragmatic Play / Reel Kingdom)
If you’ve played other Big Bass slots, this quirky addition might surprise you. Big Bass Boxing combines fishing themes with a ringside twist. It’s all about unlocking wild features, knockout-style bonuses, and racking up wins in the free spins round. It starts slow — but when the bonus hits, it delivers. One of the more unusual online slots this year, but a fun one to try.
Golden Winner Grand Chance (Inspired Gaming)
Looking for a fresh twist on classic online fruit slots? Golden Winner Grand Chance brings retro reels into the modern era. Expect instant win jackpots, cash collect features, and a colourful layout that captures the excitement of old-school gaming — with plenty of chances to hit it big. It’s the kind of slot that keeps the action moving and the wins coming.
Gold Blitz Ultimate (Games Global / Fortune Factory Studios)
One of the most talked-about new slot games of 2025, Gold Blitz Ultimate brings fast-paced action with blazing visuals. This high-intensity online slot features free spins, collect-style bonuses, and non-stop momentum. Ideal for players who love quick gameplay and dynamic bonus rounds.
3 Hot Chilli Peppers (1x2 Gaming)
Bring the heat with this spicy, Mexican-inspired slot that’s all about Hold & Win mechanics, bonus symbols, and big multipliers. 3 Hot Chilli Peppers turns up the temperature with every spin. Perfect for fans of high-volatility online slots who want to chase bold wins and vibrant themes.
King Kong Cash: Even Bigger Bananas 4 (Blueprint Gaming)
King Kong is back — and this time, the bananas (and bonuses) are even bigger. This latest instalment in the King Kong Cash series delivers a tropical adventure full of bonus features, upgrades, and collect mechanics. If you enjoy cartoon-style online slots packed with variety, this jungle journey should be top of your list.
Fluffy Favourites (Eyecon)
A long-time fan favourite in the UK, Fluffy Favourites remains one of the most popular online slot games thanks to its easy gameplay and fairground charm. It’s a perfect pick for casual players or those chasing free spin bonuses and light-hearted fun. Don't be fooled by its cute design — this slot still packs winning potential with the right feature hits.
Why These Online Slots Are Perfect for Summer 2025
- Fresh themes – From fishing to flaming peppers, these games capture summer vibes.
- Bonus-packed – Expect free spins, bonus rounds, cash collect features, and more.
- Great for mobile – All titles are fully optimised for play on phone or tablet.
- Top providers – Featuring big names like Pragmatic Play, Blueprint, and Games Global.
- New releases – These are some of the best new online slots available to UK players this year.
Ready to explore these summer favourites? All of these top UK slot games are available now at Casushi — with exclusive promotions, rewards, and a mobile-first experience that keeps gameplay smooth and exciting wherever you are.
Must be 18+ to play. Please gamble responsibly — visit BeGambleAware.org.
