Play Nitro 81 for Free

As a game based on sport cars, Nitro 81 puts you in command and lets you immerse yourself in its original and fast-paced universe.

The graphics are of decent quality, and everything screams fast cars. The background shows a modern cityscape at night, with tall, lit-up skyscrapers standing behind the spinning reels. You will also notice two speed-o-meters on top of the screen, which we will come back to later.

The sound effects help you immerse yourself even further into the game; it will not be long before you feel your heartbeat rise. Let’s take a closer look at the gameplay itself in the next section.

Nitro 81 might be putting you behind the wheel of a sports car, but the game commands are still classic and easy to use, even for total beginners.

The gameplay is simple and straightforward, very similar to other Kajot Gaming creations like the Moko Mania slot, if you are familiar with them. You have four reels with three symbols on each, and no paylines visible. Instead, winning combinations appearing anywhere on the reels will trigger a cash prize. The command buttons located below the reels will let you adjust the amount of your wager. Simply use the (+) and (-) buttons to modify your settings, and you are good to go.

Hit the Start button to start the game. Winning combinations will trigger a cash prize corresponding to both the nature of the symbols and the size of your wager. You can bet a little extra to increase the size of your future potential winnings. You can try out the Auto Start mode to let the reels spin over and over on their own for as long as you wish. Note that after each win a mini gambling game will start automatically. Guess the colour of a hidden card to double your cash prize, and collect your new winnings whenever you like. A wrong guess will make the whole stash disappear, so be careful.

The symbol menu of Nitro 81 is of course filled with car-related icons, in complete coherence with the rest of the game. No surprises there, just fun.

The list contains a Speed-o-meter, a Nitro 81 Logo and a Can of motor oil for starters. These symbols have lower payouts than the others, but they will appear frequently on the reels.

Things get more serious with the three Sports Cars icons. Green, Blue and Purple, each of them brings bigger wins and you should probable keep your eyes wide open to make sure you can spot them at any time.

For the greatest cash rewards of Nitro 81, aim for the Girl, the Cup and the Checkered Flags. You will not be disappointed!

To make sure that you are never bored during your game of Nitro 81, Kajot Gaming has added a few special icons that can bring more than just cash into the mix.

The Nitro Bonus symbol is linked to the first counter on top of the reels. Each Nitro symbol collected during your game will increase the counter by 1%. When you reach 100%, your next win will be tripled.

The Nitro Heart symbol corresponds to the second counter. With four of them lined up on the middle payline, the display will increase by 25%. When you hit the 100% mark, the subsequent five wins will be tripled automatically, and added to your credit total.

Nitro 81 sticks to its universe from the very beginning and stays coherent throughout, which is its principal strength but also perhaps its weakness. If you are already into cars and races, then this is a no-brainer: Nitro 81 is your game, you should try it out right now.

Nevertheless, Nitro 81 probably does not have the flexibility or originality that it would take to woe other players, beginners who do not know much about slot games or players who are not into cars. A strong universe can be a double-edged sword and it also has to compete against classic sports car slots such as RTG's Green Light and modern creations such as NetEnt's Drive: Multiplier Mayhem.