This rating is dedicated to new slot machines released in 2021. We collected gaming statistics on this category for the last month and presented for you Top-8 of the hottest and most winning slot machines. You can find detailed statistics and predictions below in our review.
Be careful! Slots are «hot» only in the specified casino.
The Most Winning New Slots (July)
| Slot name | Odds of winning | Casino | Average RTP for the year/ Monthly RTP |
 |  |  | 96.2%/ up to 112% |
 | |  | 96%/ up to 103% |
 |  |  | 95.91%/ up to 98% |
 |  |  | 96.04%/ up to 102% |
 | |  | 96%/ up to 98% |
 | |  | 96.2%/ up to 102% |
 | |  | 96.00%/ up to 107% |
 | |  | 96.07%/ up to 106% |
Slots winning ranges
Why does the rating of new slots look like this?
At the bottom of the web page, you can see our statistics and forecast for the above mentioned «hot» slots. The program developed by our team scanned the information of more than 2000 of the most popular slot machines in the most popular casinos and gave statistics on the hottest slot machines and servers at the moment. Because the slot becomes due for a win only after making several million spins, our rating updates the database of hot games once a month.
Megaways technology in new slots
Demand for high-quality online slots continues to grow and shows no sign of slowing down, with hundreds of software providers releasing hundreds of new slot machines every year. Modern video slots with beautiful graphics and sound, record breaking progressive jackpots (Megaways), free spins, interactive bonus rounds and licensed branded themes have taken the capabilities of online slots to a whole new level.
Most of the older online slots have a limited number of reels and paylines, which tend to remain the same throughout the gameplay. However, in Megaways slot machines, the structure of the reels and the number of lines are constantly changing, varying the combinations with each spin of the reels to offer a completely unique gameplay experience. Since its introduction by the provider Big Time Gaming, many of the biggest developers in the online casino industry have adopted this mechanic to upgrade their best slots to meet today’s player demands.
How do you pick a winning slot machine?
This ranking provides detailed statistics and a forecast of winnings for the slot machines considered. The graph is constructed taking into account the following parameters:
- Slot’s RTP
- Slot variance
- Number of winning combinations
The winning statistics of a slot machine are given only for the casino with a predicted maximum return in the next month. The average monthly RTP of a slot can be calculated only on long-term game series (we collect statistics for a month). If during the previous period the slot machine showed RTP below the average value, there is a high probability that this month the percentage of return will be higher than the value set by the developer. Move your mouse cursor over any point of the blue graph (last nine months) and you will see the average monthly RTP in the current period. The red line is the average annual RTP specified by the provider.
New slots with high odds of winning
1. Online Slot Money Train 2
Money Train 2 plays out in a dusty, old desert town, and you will play with 5 reels, 4 rows and 40 ways to win, just like in the original game. Relax Gaming has done most everything right with this sequel to their original hit game, and we believe fans will appreciate the effort and improvements. The steampunk theme adds a new dimension to the concept, and the visual presentation and characters are as cool as ever. The biggest drawback of the first game was the highly volatile base game grind, but this time you will benefit from a clever respin feature that helps keep you motivated towards the bonus round climax.
Slot statistics
How to win at slots?
| Winning casino for this slot |  |
| Slot variance | High |
| Average RTP for the year | 96.21% |
| RTP this month (only for 1Win casino server) | up to 112% (Hot slot) |
| The money needed to win the slot? (minimum) | From $45 |
| How much should I bet per spin on slot? | $0.1 to $0.5 |
| Winnings at which it is worth changing the hot slot (net gain) | $81 (180% of the deposit) |
2. New Slot Machine Hell Hot
Slot Hell Hot 100 is another game in the genre of classic slot machine the Endorphina provider presented us in 2021. The slot has five spinning reels and one hundred pay lines which provide every single player with an opportunity to win big. We would also like to note the peculiar graphics since, in our opinion, everyone could see something of the kind in land-based gambling establishments somewhere in 2000. We cannot say that it is very bad, but one thing is for certain, this game is not to everyone’s taste. A great virtue of the Hell Hot 100 slot machine is the fact that the players who prefer to think big and play at high stakes will like it.
Slot statistics
How to win in Hell Hot slot?
| Winning casino for this slot | |
| Slot variance | Low |
| Average RTP for the year | 96% |
| RTP this month (only for Trust Dice casino server) | up to 103% (Hot slot) |
| The money needed to win the slot? (minimum) | From $100 |
| How much should I bet per spin on slot? | $0.2 to $0.5 (range of the best bets) |
| Winnings at which it is worth changing the hot slot (net gain) | $140 (140% of the deposit) |
3. Hot New Slots Buffalo
This high volatility 5×3 video slot with 25 paylines brings you deep into the native American environment, populated by one of the most important animals in their culture. The Buffalo represents power, safety and strength. Call on the Buffalo as your Power Animal when spinning the reels of Buffalo Hold and Win! Scatter combos can stomp onto reels 2-4 to trigger 8 Free Spins with only high value symbols, setting you up nicely for the possibility of retriggering the feature.
Slot statistics
How to win at slots?
| Winning casino for this slot | |
| Slot variance | High |
| Average RTP for the year | 95.91% |
| RTP this month (only for FastPay casino server) | up to 98% (Hot slot) |
| The money needed to win the slot? (minimum) | From $200 |
| How much should I bet per spin on slot? | $0.5 to $1 |
| Winnings at which it is worth changing the hot slot (net gain) | $160 (80% of the deposit) |
4. Cauldron – Online slot 2021
The action in the Cauldron slot plays out on a classic 5 reel, 3 row, 20 payline machine. Winning combinations are formed by land 3 or more matching symbols or wilds from left to right on a payline, starting from reel 1 on the left. The Cauldron RTP is 96.04% which is about average. The hit frequency rate is 20.29% so you can expect to land a winning combination on around one fifth of spins on average. The gameplay here is simple enough but Cauldron can still deliver a decent payout punch. The volatility here is high. The most you can win from a single spin is 2,222 x your total stake.
RTP statistics
How to win in Cauldron slot?
| Winning casino for this slot | |
| Slot variance | High |
| Average RTP for the year | 96.04% |
| RTP this month (only for 1Win casino server) | up to 102% (Hot slot) |
| The money needed to win the slot? (minimum) | From $70 |
| How much should I bet per spin on slot? | $0.2 to $0.5 (range of the best bets) |
| Winnings at which it is worth changing the hot slot (net gain) | $105 (150% of the deposit) |
5. New Slot Cave of Fortune
Long ears, scary cat eyes, and long claws on the hands – these are the goblins from the Cave of Fortune slot machine. These creatures only look intimidating at first glance, but they can become good-natured towards a lucky player and share the treasures hidden in their deep dark cave.
Do you dare to enter this dangerous place? Be careful, there will be many dangers along the way. Bottle symbols on a playing field with 5 reels and 3 rows can explode symbols for 3 next spins. Also, keep an eye on the Nitro counter, as it activates the Persistent Wild feature. By filling the Grand Nitro Meter with 15 Nitro symbols, you can get the maximum jackpot!
Slot statistics
How to win at slots?
| Winning casino for this slot | |
| Slot variance | High |
| Average RTP for the year | 96% |
| RTP this month (only for Vulkan casino server) | up to 98% (Hot slot) |
| The money needed to win the slot? (minimum) | From $140 |
| How much should I bet per spin on slot? | $0.3 to $0.8 |
| Winnings at which it is worth changing the hot slot (net gain) | $126 (90% of the deposit) |
6. Fire Toad – Hot Slot 2021
Play’N Go takes players into a mythical world with erupting volcanoes in this slot game. Similar to many other slot games from this provider, this game offers players a series of interesting features that make it worth the time and effort. If you are a fan of fantasy-themed slots, this slot is a good choice for you. This is because the slot game focuses on the mythical creature called Fire Toad. The creature was said to have been birthed from a the mixture of lava from the volcanic eruption and water.
Win statistics
How to win at slots?
| Winning casino for this slot |  |
| Slot variance | Medium |
| Average RTP for the year | 96.2% |
| RTP this month (only for 1xbet casino server) | up to 102% (Hot slot) |
| The money needed to win the slot? (minimum) | From $170 |
| How much should I bet per spin on slot? | $0.4 to $0.8 |
| Winnings at which it is worth changing the hot slot (net gain) | $221 (130% of the deposit) |
7. Bonanza Slot Machine
Bonanza is one of the best slots on the market currently if we have to choose, it has everything you are looking for. The line system is not regular, where you have like 20 or 50 pay lines. In Bonanza, you can have up to over 117,000 lines to win on. With mega ways, the amount of winning lines is random on every spin. You can read about mega ways in our article about mega ways. With a very playful design and great music, you will most certainly enjoy this slot. It is provided by Big Time Gaming, which also has made Danger High Voltage, White Rabbit, and the ”Bonanza v2” Extra Chili.
Slot statistics
How to win in Bonanza slot?
| Winning casino for this slot | |
| Slot variance | High |
| Average RTP for the year | 96.00% |
| RTP this month (only for Joycasino server) | up to 107% (Hot slot) |
| The money needed to win the slot? (minimum) | From $150 |
| How much should I bet per spin on slot? | $0.8 to $1 |
| Winnings at which it is worth changing the hot slot (net gain) | $270 (180% of the deposit) |
8. Online Slot Runes of Destiny
Runes of Destiny is an online slot game from Evoplay. The slot has 5 reels and 3 rows with 20 paylines. Features include Scatters, Wilds, Free Spins and Re-spins. The RTP is at 96.07%, and this slot has a low-medium volatility level. The game features 10 symbols made up of five lower-paying rune symbols, three higher-paying picture symbols plus two special symbols. The Scatter symbol pays out for three scatters anywhere on the reels and triggers the Free Spins. It appears in the base game only. The Wild substitutes for all the regular-paying symbols, pays for three or more and appears in the bonus features as well as the base game.
Slot statistics
How to win at slots?
| Winning casino for this slot | |
| Slot variance | Low |
| Average RTP for the year | 96.07% |
| RTP this month (only for Betmaster casino server) | up to 106% (Hot slot) |
| The money needed to win the slot? (minimum) | From $120 |
| How much should I bet per spin on slot? | $1 to $1.4 |
| Winnings at which it is worth changing the hot slot (net gain) | $204 (170% of the deposit) |
Trends for 2021 in new slot machines
The new slots of 2021 are interesting and appealing to casino players of all ages. They are getting brighter, more attractive and more complex. Unique mechanics and bonus features also set new slot machines apart from their predecessors. The number of slot suppliers is constantly increasing and in order to exist in the gambling industry market, they have to constantly offer something new.
Why are players interested in new online machines?
- Fresh new topics
- Unique mechanics and bonus features
- Competitive RTP
- Bonuses for newly launched slots
- Mobile performance
Goodbye Flash, hello HTML5
If you are a player using a smartphone, you have nothing to worry about, as the termination of Flash support will not affect you much. But if you are a desktop PC player, you may have noticed that some of the game slots are no longer available.
Before mobile gaming became commonplace, almost every slot game in casinos was built using the Flash language. It was easy and convenient, although even at one time it had some security and performance issues. However, smartphones have become more advanced and have completely changed the attitude towards gambling for money. As of January 2021, Flash was officially declared dead, and Adobe is blocking any Flash content from running in the Flash player. In 2017, many game vendors took immediate action. While some began converting Flash applications to HTML5, others simply abandoned their older products.
As a result, some old slot machines simply stopped working on desktops. Fortunately, there are many new slots that will replace the mothballed favorites of the old days. Many of the classic games have been redesigned with modern features and even have higher payout percentages.