How we score
Slot review · BGaming · High volatility · updated 10·05

BookofHiddenTombs

Every source we read lists Book of Hidden Tombs at 97.00%. High volatility, 10,000× maximum win.

The highest configuration any source lists. BGaming, SlotCatalog, BigWinBoard list it.

8.0/10Velven rating · how it is built
10,000×Maximum win · of the stake
HighVolatility · 5×3
1Configurations listed · one found
Velven rating

8.0 out of 10, built from the figures.

  1. Return to player35% of the rating 9.5
  2. Win potential20% of the rating 6.5
  3. Risk and reward15% of the rating 3.5
  4. Feature depth20% of the rating 9.2
  5. Transparency10% of the rating 8.3

Our editorial rating for slots, computed the same way for every game from the figures on this page: the return (its top and its lowest configuration), the top win, whether that win rewards the game's volatility, the depth of its features, and how much of its data the studio publishes itself. Where a figure is not available, that part is left out rather than guessed. It rates the game, not a casino or the studio, and it is not a prediction of what you will win.

Velven analysis

What the figures say about Book of Hidden Tombs.

3 sources

Our reading

BGaming publishes one return for Book of Hidden Tombs, 97%, and SlotCatalog and BigWinBoard list the same. All three rate it high volatility.

It is a book game on 10 paylines, on 5 reels of 3 according to SlotCatalog. The Book is both scatter and wild; three or more give 10 free spins, a retrigger adds 10, and a golden expanding symbol comes into play.

The second bonus is where the top end lies. Three or more Golden Scatters start Super Free Spins, whose progressive multiplier starts at ×1 and doubles up to ×512. BigWinBoard prices the buys at 100× for free spins and 200× for super free spins, with Chance ×2 adding 0.5× to the stake; BGaming confirms the options but not the prices.

The 10,000× maximum is published by BGaming and matched by both third-party sources. The €0.10 to €25 stake range is agreed by SlotCatalog and BigWinBoard; the studio does not publish one.

Core mechanics Studio

  • Book symbol is Scatter-Wild
  • Golden Expanding symbol in Free Spins
  • Progressive Multiplier in Super Free Spins

Bonus features Studio

  • Free Spins
  • Super Free Spins
  • Chance ×2
  • Buy features

Free spins Studio

3+ Books trigger 10 Free Spins (+10 on retrigger); 3+ Golden Scatters trigger Super Free Spins

Bonus buy Third-party

Free Spins 100×, Super Free Spins 200× bet; Chance ×2 +0.5× (BigWinBoard)

Multipliers Studio

Progressive multiplier in Super Free Spins, x1 doubling to max ×512

Special symbols Studio

Book symbol is Scatter and Wild; Golden Expanding symbol in Free Spins; Golden Scatters

What each source reads

3 sources, one story.

BGaming
BGaming read 5 Oct 2026 · 97.00% · max 10,000× 97.00%
SlotCatalog read 5 Oct 2026 · 97.00% · max 10,000× 97.00%
BigWinBoard read 5 Oct 2026 · 97.00% · max 10,000× 97.00%

The studio's own page is read first. Third-party databases are research sources: we name them, and do not link to them. A studio can supply a game in more than one return configuration, and the casino chooses one. A higher figure at one source and a lower one at another usually means they read different configurations, not that one is wrong.

Session reality

What an hour of this game is expected to cost.

Expected cost per hour at 97.00% €7.50

That is the maths, not a prediction — a single session can end far above or below it.

0 minutes of expected playtime
Check it yourself

Thirty seconds, before your first spin.

01 Open the gameLoad it at the casino you play, in real-money or demo mode — the configuration is the same.
02 Open the rulesTap the menu or the "i" and choose Game Rules or the paytable. The theoretical return is printed there.
03 Find the returnLook for "RTP" or "theoretical return". 97.00% is the top configuration we have seen listed.
04 DecideThe same game with a higher return is often available at another casino. The difference compounds every hour you play.
Questions

What people ask about this game.

The sources we read list 97.00%. The return that applies to you is the one printed in the game rules at your casino.

10,000× the stake.

High. Higher volatility means longer dry runs between wins and bigger swings in a session.

Because a studio can ship several configurations and each casino chooses one. A review that quotes a single figure is quoting one configuration.

Sources

Where every figure on this page comes from.

  1. BGaming — official game pageRead · 5 Oct 2026
  2. SlotCatalogResearch source, not linked · 5 Oct 2026
  3. BigWinBoardResearch source, not linked · 5 Oct 2026

Velven links only to studios, regulators and neutral sources. Databases and review sites we read for research are named here and never linked. Spotted something out of date? Tell us.

In full

The verdict.

Book of Hidden Tombs is a high-volatility BGaming game released in August 2026, with a 5×3 layout and a maximum win of 10,000× the stake. The sources we read list a single return for it. The figure that applies to you is the one printed in the game rules at your casino. The sources agree on the figures shown.Open the game rules before you play and check the return printed there.