Who Is Spinomenal?
Spinomenal is a digital games studio founded in 2014 by Lior Shvartz. The company is headquartered in Valletta, Malta, and has grown into a prolific content studio, publishing more than 100 original HTML5 slots at a pace of roughly one to three new releases a month, with games reaching operators across Europe, the United States, Asia and Latin America.
Spinomenal holds a remote gambling software licence from the UK Gambling Commission (account number 000-058210-R-335436-001) and a licence from the Malta Gaming Authority (RN/025/2024), alongside regulatory approvals covering Greece's Hellenic Gaming Commission and Romania's ONJN, and is ISO 27001 certified for information security. Its games reach UK players only through operators holding their own current UKGC licence.
What Makes Spinomenal Distinctive
Spinomenal's catalogue leans on two recurring formats. The first is its long-running "Book of…" series — dozens of expanding-symbol, mythology-themed titles built around the classic book-bonus template, from Book Of Demi Gods 4 through to newer entries in the same line. The second, newer format is a run of compact 5-reel, 3-row "Hold & Hit" slots, where landing enough Bonus symbols locks them in place for a fixed run of respins; any further matching symbol resets the respin counter and adds to the collected total, continuing until it runs out or the grid fills completely, usually building toward a tiered jackpot structure that tops out at a Grand Jackpot.
The studio also groups its output into named series — its "Demi Gods" mythology line and the "Mythology Series" branding used on titles like Zeus Unchained – Hold & Hit are examples — rather than treating every release as a one-off, and most modern titles ship with several selectable RTP configurations so operators can tune a game's return for their market; the top published figure is the one typically advertised and the one we quote in our reviews.
Notable Titles
Book Of Demi Gods 4 is one of Spinomenal's longest-standing Book-format titles, sending players to Asgard for an encounter with Odin, Loki, Thor and Freya. The studio's newer Hold & Hit line includes Zeus Unchained – Hold & Hit, a Greek-mythology take on the format with a 5,000x Grand Jackpot, and two 2026 releases, 3 Fuego Chillies (a Mexican fiesta theme) and 3 Scarabs Of Rebirth (an Ancient Egyptian theme), both built around the same collect-and-respin core with a 3,000x Grand Jackpot.