This is our own slot rating based on how popular the slot is, RTP (Return To Player) and Big Win potential.
Play the Treasures of Mjolnir free demo slot—no download required! Try PearFiction / Microgaming’s latest game, enjoy risk-free gameplay, explore features, and learn game strategies while playing responsibly. Read our expert Treasures of Mjolnir slot review with ratings for key insights before you play.
Released:September 11 2025
Responsible Gaming
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Curacao-License
Curacao-License
Curacao-License
Curacao-License
Malta-License (EU)
Curacao-License
Curacao-License
Curacao-License
Curacao-License
Curacao-License
Malta-License (EU)
Treasures of Mjolnir by PearFiction Studios is a thunder-charged Norse mythology slot built around Thor’s legendary hammer. Played on a 5x4 grid with 20 paylines, it features high volatility, a 96.01% RTP, and a max win of 5,000x. The standout mechanic is UpZones LockNWin, where expanding reel zones collect coins that trigger multipliers, jackpots, or instant wins. Wild Bursts evolve every 50 spins, adding stacks, symbol removals, and multipliers. With moody Nordic visuals and a layered bonus system, this slot blends mythic atmosphere with progressive gameplay that builds tension and reward over time.
Treasures of Mjolnir has a layout that consists of 5 reels and up to 20 paylines / ways. The game has several features including Bonus Wheel, Buy Feature, Cash Prize, Expanding Wilds, Extra Spins, Fixed Jackpots, Multiplier Wilds, Respins, Stacked Symbols, and more. Treasures of Mjolnir also has a free spins bonus round and this is usually where you can win the big money.
The standard RTP (Return to Player) for Treasures of Mjolnir slot is 96.01% (Could be lower on some sites). This payback is good and considered to be about average for an online slot. Theoretically, this means that for every €100 put into the game, the expected payout would be €96.01. However, the RTP is calculated on millions of spins, which means that the output for each spin is always random.
The highest possible payout for this slot is 5000x your total bet which is pretty high and gives you the chance to win quite big wins. The maximum possible win is also calculated over a huge amount of spins, often one billion spins.
Treasures of Mjolnir is a volatile slot, and Microgaming rates the volatility High (4/5). Volatility, in the context of slot games, refers to how often and how much a slot game pays out. Treasures of Mjolnir is designed to appeal to those who enjoy the adrenaline rush of substantial winnings that low volatility slots can't deliver, and are willing to accept the inherent risks of less frequent payouts.
Treasures of Mjolnir delivers a rich feature set and immersive presentation, but seasoned players may notice recycled mechanics from PearFiction’s earlier titles like Betbarian Bounty. The LockNWin system and evolving Wild Bursts add strategic depth, while the Bonus Wheel and Jackpot Coins keep the action dynamic. However, the 20-payline layout feels modest compared to modern grid expansions. Still, for fans of Norse-themed slots and progressive bonuses, this game offers a satisfying mix of atmosphere and layered rewards.
This is our own slot rating based on how popular the slot is, RTP (Return To Player) and Big Win potential.
Yes! You can enjoy Treasures of Mjolnir in demo mode without signing up. Try our free version above to explore the features. For real money play, visit one of our recommended Microgaming casinos.
To play for real money:
The slot offers a moderate max win of 5000x your stake.
Example: A €1 bet could return up to €5000.
Yes! Most of our featured Microgaming casinos on this page offer welcome packages that include free spins or bonus cash usable on Treasures of Mjolnir. Always check the terms before claiming.
Absolutely. The game is fully optimized for mobile devices, including iOS and Android.
Yes, the demo mirrors the full version in gameplay, features, and visuals—just without real money payouts.