Best Online Slots of the Week, May 22, 2025
Written by: Filip Gromovic Reviewed by: Nashon Khamala
Read time: 7 minutes
The world of online casinos is always buzzing with developers pushing out fresh new slot titles every week. Whether you are a fan of classic slots with simple mechanics or modern slot game designs packed with bonus features, this week’s selections have something for all players. From the mystical howls of Wolf Run Gold to the cash-inspired reels of Capital Gains, these games bring a blend of entertainment, thrill and huge-win potential. You can find them at many online casinos, where you can play online slots for real money or play for free to explore what each machine has to offer you.
#1 Wolf Run Gold Slot by IGT
Developer Information
IGT continues to dominate the online casino gaming scene with yet another game inspired by one of its popular hits. The Wolf Run Gold slot takes the beloved nature theme of the authentic Wolf Run and makes it even better with its upgraded graphics, free spins bonus and boosted mechanics.
Game Theme and Concept
The game is set in the heart of a mysterious forest. The slot machine features bold wolves, moonlit landscapes and ancient totems that display nature’s wild beauty. The atmosphere is intense, with the Wolves howling sound effects and crisp animations bringing the wilderness to life.
RTP (Return to Player) Percentage
The RTP for this new slot stands at 92.5%, ensuring an ’okay’ balance between wins and gameplay longevity.
Volatility Level
This is a medium volatility slot, meaning it offers a combination of frequent small wins and occasional massive payouts, making it a nice choice for most players.
Unique Selling Points
- Moon symbols can trigger a free spins bonus. Players can get up to 5 free spins and 2x multiplier when a new round starts.
- Winning combination potential is boosted by stacked wilds.
- Bonus feature where players can collect golden wolf icons for added multipliers.
- The entire theme is quite enthralling, and the graphics are also very immersive.
#2 Choy Sun Doa Slot by Aristocrat
Developer Information
A player-favorite from Aristocrat, the Choy Sun Doa slot is an A-list slot machine known for its exciting gameplay and rewarding bonus feature. Aristocrat has a lengthy history of providing top-tier casino game experiences, and this game continues that long tradition.
Game Theme and Concept
This slot game is inspired by Chinese mythology and wealth, with Choy Sun, the god of riches, leading players toward fortune. Symbols in the game include golden ingots, lucky coins, jade rings and traditional Chinese calligraphy, all set against a background of vibrant red and gold.
RTP (Return to Player) Percentage
The game boasts an RTP of 95.0%, offering a fair play potential with fairly okay payouts.
Volatility Level
This is a medium volatility machine, meaning wins are less often but can be big when they occur.
Unique Selling Points
- Free spins bonus round with multipliers of up to 30x.
- Progressive slot potential with jackpot payouts.
- Winning combinations can increase with the golden dragon wilds.
- The amazing graphics interface and animations cover for the less action.
#3 Capital Gains Slot by AGS
Developer Information
AGS is known for developing exciting game titles that appeal to both casual and high-roller players. The Capital Gains slot continues this tradition. However, the machine focuses on monetary success, wealth and suspenseful excitement.
Game Theme and Concept
Money speaks the loudest in Capital Gains, with gold bars, diamonds and stacks of cash taking center stage. The reels display luxurious items, further highlighting the theme of financial success. The slot game’s animations include flashing dollar signs and golden coin explosions whenever a huge win lands.
RTP (Return to Player) Percentage
With an RTP of 95.96%, Capital Gains sits just above the industry standard range, and this means it can offer you a good and fair payout rate.
Volatility Level
This is one of the many high volatility slots in the casino market, meaning that while wins may be far fetched on most occasions, they can be quite substantial when they hit for the player. Like we always imply in our articles, know your type and level in the slot gaming industry, as this would enable you to know the kind of slot to go for. Obviously, this automat is for those with a good level of patience and optimism, you could also add experience.
Unique Selling Points
- Bonus features consist mainly of the Money Vault Pick Game which offers instant cash benefits.
- Free spins bonus with a chance to unlock expanding reels.
- Winning combination potential is boosted with wild cash symbols.
#4 Whales of Cash Slot by Aristocrat
Developer Information
Another slot machine from Aristocrat, the Whales of Cash slot is a softhearted slot game with a sea-inspired theme that gives an engaging experience for players of all levels and types.
Game Theme and Concept
You can dive into the underwater world filled with eager whales, treasure chests and shining sea creatures. The slot has a bold design, making it a good choice for those looking for a fun and physically appealing casino game.
RTP (Return to Player) Percentage
With an RTP of 95.15%, this game offers players fairly steady returns, making it a great pick for those who enjoy extended play sessions, and also want to win money consistently.
Volatility Level
This is a medium to high volatility activity, making it perfect for players who prefer frequent but smaller wins.
Unique Selling Points
- Free spins bonus awarding up to 50 free spins and 40x multipliers.
- Winning combination possibilities increase with more stacked wild whales.
- Best online slot choice for casual, easygoing, simple gameplay.
- Stunning graphics and fun theme.
#5 Peacock Beauty Slot by AGS
Developer Information
AGS yet again delivers another wonderfully developed game. Peacock Beauty slot combines elegant aesthetics with engaging slot dynamics.
Game Theme and Concept
The game is inspired by peacock symbolism in Indian and Asian cultures, where the bird depicts beauty, luck and wealth. The reels are clothed with peacock feathers, golden jewelry and vibrant lotus flowers, creating an attractive visual display.
RTP (Return to Player) Percentage
The RTP is 96.02%, offering a good balance between risk and reward. However, it is more volatile than most machines.
Volatility Level
This is a high volatility slot, meaning you can expect fewer, smaller and frequent wins and significant payouts when it finally hits.
Unique Selling Points
- Bonuses include symbol transformations for bigger payouts.
- Winning combination multipliers can be activated during free spins.
- Best slot for players who enjoy artistic and culturally inspired themes.
- The slot is 1024 ways, 5 reels game.
Conclusion
This week’s new online slot releases bring a variety of themes, from mythical wolves to financial success. Whether you are searching for high volatility slots that offer big wins or low volatility slots for consistent and longer gameplay, these selections are open to all types of players. Each of these slot games are available at many online casinos, where you can actually play these games for real money or even play for free to test what they have to offer.
Methodology
To be able to select the best online automats of the week, we reviewed hundreds of slot games based on several factors:
- New slot announcements with thrilling themes and gameplay mechanics.
- A variety of classic slots, video slots and progressive slots.
- Trustworthy slot reviews and good player feedback.
- Availability of the best casino platforms online and land-based.
- Addition of free spins, bonuses and other benefits in the games.
These slot options for the week guarantee a fun slot game experience, ensuring players enjoy fair play, beneficial features and engaging gameplay!
Filip Gromovic is a senior slots reviewer here at FreeSlots99 with over five years of experience evaluating the latest drops in the world of iGaming.
Being a slot fan himself, Filip approaches slot ratings just the way we like it – professionally, but also from a player’s standpoint.
That enables him to give his unbiased take on the slot’s features, gameplay and design, while only recommending top-tier releases to our readers.
More info on Filip Gromovic
Having served FreeSlots99 for more than 5 years as a senior content editor and reviewer, Nashon Khamala has extensive knowledge in game slots and iGaming.
His membership in the Editorial Freelancers Association helps him deliver content that reaches both editorial excellence standards and an engaging information level.
By using his expertise in slots games combined with player-focused analysis, Nashon delivers a professional evaluation of slot features and player experiences in his reviews.
More info on Nashon Khamala