Ivan and the Immortal King is a Slavic-themed slot game with some mythological creatures, and it's a refreshment to see a game that doesn't use the same theme as everyone else. I've played this game for a few hours and I can tell what are the pros and cons. This is more or less a standard Quickspin game so every fan of this developer will be familiar with the game. It's the free spins feature that makes the difference as it's an interesting one. Main game and paytable The paytable consists of two distinct groups of symbols, low- and high-paying. The low-paying symbols are represented by five Gems of different colors, and they pay either 5x or 6.25x your bet for five-of-a-kind. The rewards greatly increase in the high-paying group of symbols, as the next three symbols pay 15x, 22.5x and 37.5x your bet for five-of-a-kind respectively, and the top two symbols offer really generous prizes of 50x and 100x. There are also two Scatters and a Wild, for a total of 13 symbols in the game. Wild pays 100x your bet if you land all five. There are 20 fixed paylines on a 5x3 board, and just like in all Quickspin games, the bet selection is really straightforward as you simply choose your total bet. It can range from €0.20 to €100 per spin. Bonus features Baba Yaga can appear beside your reels anytime, and she will hide four random adjacent symbols and will then either replace one to three of those symbols with Bonus Scatter symbols, or will randomly choose one paying symbol that will replace all four hidden symbols and will guarantee a win. The free spins game is a progressive one with six levels. If you land three Scatters you'll start on the first level with 10 free spins and no win multiplier, if you land four Scatters you'll start on the second level with 14 free spins and a x2 win multiplier, and if you land five Scatters you'll start on the third level which brings 18 free spins and a x3 win multiplier. Regardless of the level you started on, you can advance through levels by collecting three Progress Scatters. Whenever you reach a new level you'll get 4 extra free spins, and the win multipliers on the final three levels are x5, x10 and x20, so on the final level you'll have 30 free spins with a x20 win multiplier but by the time you reach that you will likely only have four or five free spins left. This is a potentially very rewarding free spins feature that can make you rich with those win multipliers. Ivan and the Immortal King Slots RTP Theoretical return to player (RTP) is 96.29%, which is good enough and it guarantees the game is as fair as most others. This is expected from Quickspin, all their games pay relatively well, and this is no exception. It's important to note that this game can really pay well, as in theory you could land five-of-a-kind of the best symbol, which is worth 100x your bet, during a free spins game with a x20 win multiplier. With a €1 bet per spin, that would be a win of €2000. Conclusion Ivan and the Immortal King is a good Quickspin game that resembles all others by this developer, but the free spins feature is impressive and it makes the game unique. This game can really pay well, so you should give it a few spins and see if you like it.