Book of Bloodlines Dice

Book of Bloodlines Dice Slot Review — Air Dice

Book of Bloodlines Dice is a slot from Air Dice that introduces a specific combination of mechanics. The game pairs a scatter symbol that opens a free spins round with an expanding symbol that can grow across a reel, set against an ancient-history dice theme.

Air Dice has operated since 2005 out of Finland, with its games tested by BMM Testlabs and licensed for markets including Malta, the United Kingdom, Belgium and Sweden through the Malta Gaming Authority, the UK Gambling Commission, the Belgian Gaming Commission and the Swedish Gambling Authority.

Core Gameplay Experience

The visual presentation uses dice symbols and ancient-history artwork to keep individual spins straightforward to read, reflecting the game’s broader thematic category. The title sits among Ancient & Historical themed slots, a group built around historical and mythological settings rather than modern or fantasy backdrops, and its dice-face symbol set reflects that choice rather than the classic fruit or card icons seen elsewhere in the category.

Features and Mechanics

A scatter symbol is the free spins trigger in Book of Bloodlines Dice: landing enough scatters switches the game into a free spins round.

An expanding symbol can grow to cover extra positions on a reel when it lands, a mechanic also found across other slots with expanding symbols. This mechanic operates across the fixed 10-payline structure.

RTP, Volatility and Payout Model

Book of Bloodlines Dice returns a theoretical 95.4% RTP and runs on a high-volatility payout curve, meaning the game is built to pay out less often but at a larger average size when it does.

That combination typically produces longer stretches without a win than a steadier payout curve would, with the return concentrated in fewer, bigger hits tied mainly to the free spins round and the expanding symbol rather than spread evenly across base-game spins. The 95.4% figure describes the theoretical share of total wagers paid back over many spins; it is not a guarantee for a single session, and short-term results can sit well above or below it.

Similar Dice Slots — Comparison

The six dice-themed slots in this comparison span RTP from 95.1% to 96.1%, and every difference against Book of Bloodlines Dice’s 95.4% stays small once converted into money: Aztec’s Claw Wild Dice’s 96.1% costs $0.70 less per $100 of bets in theory, Almighty Sparta Dice’s 96.09% and Nefertiti’s Nile Dice’s 96.08% cost roughly $0.69 and $0.68 less, Ancient Troy Dice’s 96.06% about $0.66 less, while Mayan Dice‘s 95.1% runs $0.30 in Book of Bloodlines Dice’s favor — all of it theoretical, measured over large numbers of spins rather than any single session.

The sharper split in this group is volatility, not RTP: Book of Bloodlines Dice shares a high-volatility profile with Nefertiti’s Nile Dice and Almighty Sparta Dice, while Mayan Dice and Aztec’s Claw Wild Dice run medium volatility and Ancient Troy Dice sits medium-high. A player after calmer, more frequent returns around the same dice theme has that medium-volatility pair to look at instead, while Nefertiti’s Nile Dice changes the mechanic itself by adding cascading reels on top of its paylines, rather than the fixed-payline spin used here and by most of its neighbors.

How to Play Book of Bloodlines Dice Online

Book of Bloodlines Dice can be launched in demo mode, which runs the same 5-reel, 10-payline math and the same scatter and expanding-symbol mechanics without placing real bets. Testing the free spins trigger and the expanding symbol in demo play is a practical way to see how the high-volatility curve behaves before wagering real money, and the slots category carries the same demo option across other titles in the catalogue.

Air Dice’s library is carried by 2 casinos as of 3 November 2026, including PlayMojo and Spinbetter; that count covers the studio’s catalogue as a whole rather than this title specifically, so whether Book of Bloodlines Dice itself is listed is worth checking at the operator’s own game lobby. The Air Dice provider hub is a faster way to see which operators carry the studio’s games than checking them one by one, and a valid gambling licence alongside the demo option are the two things worth confirming before playing for real money.

Verdict on Book of Bloodlines Dice

Book of Bloodlines Dice operates as a high-volatility dice slot, establishing a distinct variance profile. That profile suits players who can tolerate long runs without a win in exchange for payouts concentrated in fewer, larger hits, and who size bets and set loss limits with that variance in mind. It is a weaker fit for players who want frequent, smaller returns or a steadier pace, since neither is what this payout model is built to deliver.