Book of Thieves

Lantern light and dusk skies frame a timber-built medieval village in Blue Guru Games' Book of Thieves, played out across a 5-reel, 3-row grid with 40 fixed paylines. Wins form from three or more matching symbols on the low-paying tier and two or more on the premium tier.

Bronze, silver and gold coins pair with a dagger and cup as the lower-value symbols, each worth 5 to 15 times the stake across five matching icons. The four character symbols form the game's premium tier, each worth 50 to 250 times the stake at the same five-symbol count. A Book scatter and a dedicated Wild fill out the remaining positions, with the Wild landing on any reel, matching the value of the top character symbol, and substituting for anything that hasn't already expanded.

An expanding-symbol mechanic runs through the base game via a box positioned above the middle reel: whatever symbol lands inside it becomes that spin's chosen expander, and if it completes a winning combination it stretches to fill its entire reel and pays across every line regardless of position. Three or more Book scatters trigger a Free Spins round worth 10 spins, and each individual free spin draws up to three symbols at random to serve as that spin's expanders, taking turns to grow across their reels whenever one forms a win. A further three or more scatters appearing during the round adds another 10 spins on top of what remains.

Players who prefer to skip straight to the feature can buy it for 70 times the stake, at a theoretical return of 96.08% for that route, the same 96.08% RTP that applies to ordinary spins as well, while Blue Guru Games lists 93.95% as an alternate configuration some operators may run instead. Medium volatility, a 5,250x ceiling on the maximum win, and stakes between 0.20 and 200 per spin complete the picture for a slot that launched in April 2023.