Book of the Nibelungen

Book of the Nibelungen is a German mythology 5×3 Book-style slot. The BOOK symbol acts as both wild and scatter — land 3+ to trigger free spins where one randomly chosen symbol expands to fill entire reels. Free virtual coins at Aurion Casino, no real money.

Book of the Nibelungen follows the beloved Book-style slot format: a single symbol is both wild (substitutes in base game wins) and scatter (triggers free spins when 3+ land anywhere). The mythology cast draws from German legend — Wotan, Siegfried, Brünnhilde, and the dragon Fafnir fill the high-value positions, with rune symbols as lower-value filler.

When the free-spins feature triggers, one symbol is randomly chosen as the expanding symbol. During the free spins, that symbol expands to cover all 3 rows of any reel it appears on — dramatically increasing the chance of a full-reel match across multiple reels. Book of the Nibelungen uses the same free coin balance as all other Aurion games.

How to Play

1. 1. Set your bet and click Spin. The 5×3 grid fills with mythology symbols.
2. 2. Wins are paid left to right on 10 paylines. The BOOK symbol substitutes for all other symbols as a wild, completing winning combinations.
3. 3. Three or more BOOK symbols anywhere on the grid trigger the free-spins feature. Before the feature begins, one symbol is randomly selected as the expanding symbol.
4. 4. During free spins, the expanding symbol stretches to cover all 3 rows of any reel it appears on. This can create full-reel matches across multiple reels for large payouts.
5. 5. Additional BOOK symbols during free spins can award more free spins, extending the feature with the same expanding symbol.

Strategy Tips

• • The value of the free-spins feature depends heavily on which symbol is chosen to expand. High-value symbols (Wotan, Siegfried) expanding give the biggest potential wins.
• • In base game, the BOOK wild is most valuable when it completes a high-value payline. Three BOOKs also trigger the bonus — so every BOOK on screen has dual value.
• • Free-spin retriggering extends the feature significantly. During free spins, watch for BOOK symbols — each retrigger adds more spins with the same expanding symbol.
• • Three reels covered by an expanding high-value symbol pays for all paylines crossing those reels simultaneously.

Frequently Asked Questions

What is Book of the Nibelungen?

Book of the Nibelungen is a 5×3 Book-style slot with 10 paylines. The BOOK symbol is both wild and scatter. Landing 3+ BOOKs triggers free spins, where one randomly chosen symbol expands to cover full reels — the classic mechanic that makes Book-style slots so popular.

Is Book of the Nibelungen free?

Yes. You play with Aurion's free virtual coins. No real money is wagered or paid out. New players receive a starting balance on signup.

Can free spins retrigger?

Yes. Landing 3 or more BOOK symbols during the free-spins feature awards additional free spins. The expanding symbol stays the same throughout the entire triggered feature.