Let's start with the provider Endorphina. The situation here looks quite optimistic. All the checked slots show an RTP above 96%, which is a good indicator. Casinostars.io does not reduce the return percentage in the games of this developer, which is commendable.

• Argonauts – RTP 96.06%

• Fresh Crush – RTP 96.07%

• Joker Ra – RTP 96.07%

• Late Night Win – RTP 96%

• Rabbits Rabbits Rabbits – RTP 96.05%

• Riches Of Caliph – RTP 96.07%

Moving on to Evoplay, we see a similar picture. RTP in all the checked slots is at 96% or slightly higher.

• Blessed Flame – RTP 96%

• Fruit Super Nova – RTP 96.03%

• Lucky Porker Bonus Buy – RTP 96.01%

• Mega Greatest Catch – RTP 96.03%

• Neon Capital – RTP 96.09%

• Redrose Sanctuary – RTP 96%

However, the situation changes when we look at the slots from Hacksaw Gaming. Although most games show high RTP, the slot "Fear The Dark" shows a significant reduction—from 96.26% to 94.33%. This is a bit concerning and raises questions about the casino's motives.

• Benny The Beer – RTP 96.17%

• Cursed Seas – RTP 96.22%

• Densho – RTP 96.4%

• Fear The Dark – RTP 94.33% (normal 96.26)

• Mayan Stackways – RTP 96.33%

• Wanted Dead Or A Wild – RTP 96.38%

As for Mascot, we see varying RTP levels here, but all are within the normal range for the respective slots. Although some values are below 96%, these are the maximum possible figures for these games, and the casino does not reduce them.

• Book Of Amaterasu – RTP 95%

• Cancan Saloon – RTP 96.7%

• Legioner – RTP 96%

• Rekill – RTP 95.9%

• Riot – RTP 96.07%

• Zeus The Thunderer – RTP 95.3%

The situation with Microgaming raises serious concerns. While most slots have decent RTP, the games "Queen Of Alexandria Wowpot" and "Wolf Blaze Wowpot Megaways" show extremely low rates—87.2% and 86.93%, respectively. This is a significant reduction that greatly diminishes players' chances of winning.

• 3 Angels Power Combo – RTP 96.4%

• 3 Lucky Hippos – RTP 96%

• Chronicles Of Olympus II Zeus – RTP 96.08%

• Fish Em Up – RTP 96.11%

• Queen Of Alexandria Wowpot – RTP 87.2% (normal 92.50)

• Wolf Blaze Wowpot Megaways – RTP 86.93%

NetEnt, unlike the previous provider, shows consistently high RTP in all the checked slots. All values exceed 96%, which speaks to the casino's fair approach to the settings of this developer's games.

• 101 Candies – RTP 96.08%

• Beach Invaders – RTP 96.09%

• Big Bang Boom – RTP 96.07%

• Crab Trap – RTP 96.07%

• Thrill To Grill – RTP 96.05%

• Twin Spin XXXtreme – RTP 96.06%

Nolimit City brings an unpleasant surprise. Half of the checked slots have reduced RTP. This is particularly noticeable in the games "Benji Killed In Vegas," "Casino Win Spin," and "Dead Canary." The number of reductions raises serious questions about the casino's policies.

• Benji Killed In Vegas – RTP 94.02% (normal 96.04)

• Blood And Shadow – RTP 96.13%

• Casino Win Spin – RTP 94.26% (normal 96.74)

• Dead Canary – RTP 94.12% (normal 96.02)

• DJ Psycho – RTP 96.05%

• The Cage – RTP 96.05%

The situation with Pragmatic Play is even more alarming. All the checked slots from this provider have reduced RTP. The reduction averages around 2%, which significantly reduces players' chances of winning.

• Book Of Tut Megaways – RTP 94.05% (normal 96.08)

• Forge Of Olympus – RTP 93.96% (normal 96.25)

• Gold Oasis – RTP 94.05% (normal 96.5)

• Mystery Of The Orient – RTP 94% (normal 96.00)

• Rocket Blast Megaways – RTP 94.06% (normal 96.01)

• Sky Bounty – RTP 94.03% (normal 96.05)

Push Gaming also disappoints in the verification results. All slots from this provider at Casinostars.io have reduced RTP.

• Fat Drac – RTP 94.05% (normal 96.57)

• Fat Rabbit – RTP 94.15% (normal 96.14)

• Fire Hopper – RTP 94.66% (normal 95.39 - 96.57)

• Jammin Jars – RTP 94.25% (normal 90.45-96.83)

• Razor Shark – RTP 94.06% (normal 90.52-96.70)

• Tiki Tumble – RTP 94.36% (normal 96.3)

Red Tiger shows perhaps the most disappointing results. All the checked slots have reduced RTP by more than 2.5%. This is a huge difference that almost deprives players of the chance for long-term winnings.

• Clover Craze – RTP 93.2% (normal 95.68)

• Don't Hit Plz – RTP 92.64% (normal 95.71)

• Dr.Francashstein – RTP 93.03% (normal 95.77)

• Gold Mine Mistress – RTP 92.79% (normal 95.69)

• Midnight Thirst – RTP 93.16% (normal 95.69)

• Sword Stomp – RTP 93.2% (normal 95.68)

Relax Gaming also did not escape reductions. Four out of six checked slots have reduced RTP, including the popular "Money Train 2". This is clearly not in favor of the players and raises doubts about the casino's fairness.

• Dead Riders Trail – RTP 94% (normal 96.5)

• Hex – RTP 96.43%

• Holy Hand Grenade – RTP 94.44% (normal 96.4)

• Money Cart 4 – RTP 96%

• Money Train 2 – RTP 94% (normal 96.4)

• Shark Wash – RTP 94% (normal 96.06)

Compared to the previous providers, Wazdan is like a breath of fresh air. All the checked slots have RTP above 96%, without any reductions. This is a rare example of a fair approach in this casino.

• 9 Coins Grand Diamond Edition – RTP 96.15%

• Black Horse Cash Out – RTP 96.12%

• Book Of Faith – RTP 96.13%

• Dwarfs Fortune Easter – RTP 96.16%

• Jelly Reels – RTP 96.22%

• Moon Of Fortune – RTP 96.12%

We conclude our verification with the provider Play'n GO, and the results are disappointing. All the checked slots have reduced RTP to 94%, which significantly reduces players' chances of winning.

• Book Of Dead – RTP 94% (normal 96.21)

• Cash A Cabana – RTP 94% (normal 96.2)

• Legacy Of Dead – RTP 94% (normal 96.58)

• Luchamigos – RTP 94% (normal 96.2)

• Moon Princess – RTP 94% (normal 96)

• Piranha Pays – RTP 94% (normal 96.21)

After a thorough analysis of RTP in the slots of various providers, I am forced to draw a discouraging conclusion: it is almost impossible to win at Casinostars.io. The chances of winning here are significantly lower than in honest casinos that do not resort to reducing RTP.

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