Thinking about giving Alduin & Celdor a spin? We tested it thoroughly so you know what to expect. Merkur are the developer behind it, tuning the title for high variance, with an RTP of 95.98%. Visually it's wrapped in polished, characterful visuals, with the action running on a 5-reel grid running 20 paylines. Expect a hit frequency around 30%, which sets the rhythm of play. The maximum win sits at 5,000x, so there's serious upside on the table. Here's how it stacks up.
Written by Emma Roberts · Last updated: March 2026
At its core, Alduin & Celdor is a release produced by Merkur. Presentation-wise it's wrapped in polished, characterful visuals, and it leans toward high volatility at 95.98% RTP. Under the hood you'll find a 5-reel grid running 20 paylines.
The mechanics are what make Alduin & Celdor interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. With high variance, this one is aimed at players who can ride out the swings for the top wins. All told, it's a solid entry in the Merkur catalogue.
At 95.98%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Alduin & Celdor 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
Alduin & Celdor by Merkur is a solid offering that delivers good entertainment value. The 95.98% RTP combined with high volatility creates a well-balanced gaming experience.