Gem Saviour Sword Slot by PG Soft

One row. Five reels, but just a single symbol visible on each. No paylines, no ways - any paying symbol landing on any reel pays individually. It's the second game in the Gem Saviour fantasy series, sitting between the original 6x6 match-puzzle and the later Gem Saviour Conquest, but shares almost nothing mechanically with either. The original was a grid-clearing RPG. This one is a stripped-down side quest where Eric hunts the Sword of Light across five spinning columns, and most of what matters happens through two features triggered exclusively on the center three reels.

Cat symbols land only on reels 2, 3, and 4. One or more triggers the Cat Respin - every Cat on those reels respins and transforms into a single randomly chosen paying symbol, excluding the four card suits (Spade, Heart, Club, Diamond). So the Cat is essentially a mystery symbol with a guaranteed upgrade, since card suits are the lowest tier and they're filtered out. Wins pay after the reveal. The hit rate on this feature is about 6.5% of all spins, making it the main source of base game action.

Three Sword symbols across reels 2, 3, and 4 open the Bonus Wheel. You spin it and land on either a flat cash prize (some multiplier of your bet, paid instantly) or a Bonus Respin with an attached multiplier. The Respin is more interesting: all five reels spin once, each revealing a single symbol. If any reel shows a card suit - Spade, Heart, Club, or Diamond - that reel keeps respinning until it lands something better. Once every position holds a non-card-suit symbol, the total win gets multiplied by whatever the wheel awarded. The feature triggers roughly once per 114 spins and accounts for about 35% of the total return despite that low frequency. With a 300x ceiling on both simulated and advertised max win, the Bonus Wheel is doing all the heavy lifting on a game that otherwise plays flat.