Emperor's Favour Slot by PG Soft

An early Chinese court theme from PG Soft's 2020 catalog, and the mechanics match the era. Standard spinning reels, 30 fixed paylines, a Wild that substitutes for everything except the Scatter, and a single bonus feature. No cascades, no multiplier ladders, no collection bars. The one wrinkle worth explaining is the big symbol system. During base game spins, 2x2 oversized symbols land on the grid - a single symbol image occupying four reel positions at once. They pay on any payline passing through those positions, which means one 2x2 landing in the right spot covers multiple paylines simultaneously without needing separate matching symbols on each line.

Free spins are the only bonus round. Three Scatters award 10 spins, four give 15, five give 20. The big symbols get an upgrade here: a guaranteed 3x3 symbol (anything except the Scatter) locks across reels 2, 3, and 4 on every free spin. That's nine of the fifteen grid positions filled with one matching symbol each round. With those nine cells occupied, the remaining six positions on reels 1 and 5 just need to land one matching symbol on the right row to complete a payline. The 3x3 block doesn't move or shrink between spins - it's always there, always covering the center three reels. It's a blunt instrument, but for a 30-payline game it forces wins at a rate the base game can't touch.