Curious what Viking Lock actually feels like to play? Here's our full, no-fluff take. This is a Boomerang Studios slot game, sitting firmly in the very high volatility bracket and paying back an RTP of 96.03%. The maximum win sits at 200,000x, so there's serious upside on the table. It first went live in 2023 and still earns its place today. You get 30 paylines across 5 reels, all wrapped in a viking theme. The full verdict is below.
Written by Alex Crawford · Last updated: March 2026
This slot, Viking Lock, is the work of Boomerang Studios, dressed up with a viking theme and powered by a 5-reel grid running 30 paylines. The result is a very high-variance maths model paired with a published RTP of 96.03%.
The mechanics are what make Viking Lock interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. The very high volatility means patience is rewarded — expect quiet spells broken by bigger hits. All told, it's a solid entry in the Boomerang Studios catalogue.
The RTP of 96.03% is right around the industry average of ~96%. This represents a fair return that's in line with what most modern slots offer.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Viking Lock features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
3.0 / 5 — Good
Viking Lock by Boomerang Studios is a solid offering that delivers good entertainment value. The 96.03% RTP combined with very high volatility creates a well-balanced gaming experience.