Written by Stephen Cummings | Reading Time 3 Mins

Last Updated: September 2, 2025

Written by Stephen Cummings

September is the time of the year when developers begin releasing their best slot games of the year. The lead up to Halloween and Christmas is always an excellent time for slots players as the night draw darker and colder and we spend more time indoors playing our favourite online casino games.

Below, we have recorded for you the top 20 most anticipated online slots which will be released in September 2025. You can play all of them at the casinos listed on our page dedicated to showcasing the best slot sites.

NEW SLOTDEVELOPERRELEASE DATE
Tower of RaCrazy Tooth Studio1st September 2025
Bill and Coin 2 Mummy MischiefRelax Gaming2nd September 2025
Diamond ChargeIron Dog Studio3rd September 2025
Take The MoneyRed Tiger Gaming4th September 2025
Bob Marlin Goes SplashingYggdrasil4th September 2025
Lobster HousePragmatic Play4th September 2025
Genie’s Gem BonanzaPragmatic Play8th September 2025
Dead Men WalkingNoLimit City9th September 2025
Crazy TikiIron Dog Studio10th September 2025
Cash LampsRed Tiger Gaming11th September 2025
Gold Storm UltraYggdrasil11th September 2025
Net Gains Dream DropRelax Gaming16th September 2025
Cowboy SnowdownIron Dog Studio17th September 2025
Heads Will RollThunderkick17th September 2025
Land of RichesRed Tiger Gaming18th September 2025
Sweet GummyAvatarUX18th September 2025
Tanked 3: First Blood 2NoLimit City23rd September 2025
3 Cheeky ChimpsIron Dog Studio24th September 2025
Nip TuckSneaky Slots24th September 2025
Gonzo’s Quest 2: Return to El-DoradoNetEnt25th September 2025

ONLINE SLOT TRENDS IN SEPTEMBER 2025

After a Summer holiday, NoLimit City are back with two brand new slots: Dead Men Walking and Tanked 3: First Blood 2. You can expect loads of high-quality features in both of these slots as well as their usual extreme variance levels.

Interestingly enough, it seems like NoLimit City may now have a sister developer in the form of Sneaky Slots. The first release from Sneaky Slots will be Nip Tuck at the end of the month which comes in the same artistic style as NoLimit City slots plus extreme volatility.

Speaking of slots which will be released at the end of the month, we are highly excited for Gonzo’s Quest 2: Return to El-Dorado. The original Gonzo’s Quest slot and Gonzo’s Quest Megaways are two of the greatest slot machines of all time, so we expect great things from NetEnt here in what will be their biggest release for several years.

As always, we will be reviewing all of the slot games mentioned here via our slot game reviews section which will allow you to read more in-depth reviews of each of the games.

STEPHEN’S MONTHLY PICK: GONZO’S QUEST 2: RETURN TO EL-DORADO

Stephen's New Slot of the Month

NetEnt’s biggest slot release for several years, Gonzo’s Quest 2: Return to El-Dorado may well become the most played slot game ever upon release such is the hype for this one. Previous Gonzo’s Quest slots have been absolutely superb and we only hope that this one will be the same.

CONTRIBUTORS

Stephen Cummings

Greetings, I’m Stephen Cummings

Stephen Cummings is often referred to as ‘The Oracle’. What he doesn’t know about slot games isn’t worth knowing. He’s our genius slot machine analyst who spends most of his time reviewing new games & sites.

Slots analyst since 2020