Legend of Hou Yi Slot by PG Soft

Sun symbols landing on the reels trigger Hou Yi's arrow shot - a mythological archer taking aim at each Sun individually. Not every arrow connects. Each Sun has an independent chance of being hit and turning into a Wild, so a spin with three Suns might convert one, two, all three, or none. It's probabilistic, not guaranteed, which makes the base game less predictable than most Wild-substitution mechanics. With 30 paylines and a 44% hit frequency, small wins land constantly, but the Suns-to-Wilds conversion is where actual payout spikes happen during normal play.

Free spins need all three Scatter positions filled - reels 2, 3, and 4 each showing one. That awards 10 spins with a linear multiplier climb: x1 on the first spin, x2 on the second, incrementing by one each time until x10 on the final spin. No retrigger, since Scatters don't appear during the round at all. The escalation is fixed and predictable, which means early spins at x1 and x2 contribute almost nothing unless a large base hit lines up. Spins 7 through 10 carry the bonus round. The Hou Yi Hunt still fires during free spins, so converted Sun Wilds at x8 or x9 multiplier is the intended peak scenario.

A 2019 PG Soft release with random Wild conversion and a straightforward escalating multiplier round. No buy bonus, no retrigger, no collection mechanics. The simulated max win across a billion spins landed at 900x against an advertised 5,000x ceiling - a gap that says most of the theoretical upside lives in combinations that almost never align.