Yggdrasil Gaming is a Stockholm-based slot studio founded in 2013 by Fredrik Elmqvist (former CEO of Net Entertainment). The company introduced the iSense proprietary HTML5 game development framework, enabling high-quality visual production standards at a time when HTML5 games lagged behind Flash quality. Yggdrasil's notable titles include Vikings Go Berzerk (2016) — with the Berserk Free Spins mechanic — Holmes and the Stolen Stones, Joker Millions progressive jackpot, and Nitro Circus (licensed partnership). Yggdrasil operates a developer studio programme (YGS Masters) that has produced content from Third Party Studios (Print Studios, Reflex Gaming, Rabcat). The company listed on Nasdaq First North in 2021.