Two old slot ideas, bolted together. That's the quickest way to describe Book of the Pyramids by Zillion Games. You get the expanding-book free spins everyone knows, and you get a Hold & Win coin round on top. Whether that combo justifies the trip to ancient Egypt depends on how lucky you are with the bonus triggers, honestly.
The reels are a standard 5×3 grid running 25 fixed paylines, framed inside a gilded temple with carved pharaohs guarding each side. Card ranks 10 through Ace fill the cheap end. The Pharaoh, Eye of Horus and Ankh handle the bigger pays. Bets stretch from 0.20 up to 100 per spin, so it suits a careful grinder and a high-roller equally well.
The star symbol is the Gold Book, and it pulls double duty. It's the wild, subbing for anything that pays, and it's also the scatter. Land three or more and free spins kick off. Before the round spins, the book flips open and picks a single special expanding symbol. That one symbol then stretches to fill whole reels and pays on every spot it covers. Classic mechanic, sure, but it still hits hard when a high-value symbol gets chosen. There's also a Blue Book special wild, a glowing secondary variant that fattens base-game wins.
Then comes the part that sets it apart. Six bonus coins trigger Hold and Ring, a respin feature where coins lock in place and you keep re-spinning to drag in more. Each coin holds a cash value. Fill all fifteen positions and the Grand jackpot pays 1000x your stake. Below that sit three more tiers: Major at 100x, Minor around 30x, and Mini near 24x. Mystery and boost symbols can sweeten the coin totals along the way.
Volatility leans high, which figures given the dual-bonus design. Quiet stretches between features are the price you pay. Max win is at least 1000x through that Grand prize. Is it a wildly original release? No. But Zillion built a clean, good-looking Egyptian slot that gives you two distinct ways to chase a big hit, and that's more than plenty of book clones manage.