Sherlock Mystery Slot by Playtech

Two of the three special symbols run the features here, and they don't work the same way. The 221b Baker Street sign is a proper scatter: it pays from anywhere on the grid (three hand you 5x the total bet, four give 25x, five pay 200x), and three or more scattered across the reels open the free spins. The round magnifying glass marked BONUS is fussier. It only counts when it lands on reels one, three and five, all three at once, and that exact pattern starts the Crime Scene round where Sherlock meets Watson to pick through the evidence for cash prizes. Miss one of those reels and nothing happens, however many glasses turn up elsewhere.

The villain does double duty. That shadowy figure peering out from under his hat is the WILD, filling in for every symbol except the scatter and the bonus, and he's also the biggest payer on the board. Five criminals on a line is the top hit at 10,000x your line bet, so the man you're chasing is the one you most want to see land. Holmes in his deerstalker and Watson in bowler hat and monocle sit just below him, then a silver revolver and a letter-opener dagger over a torn envelope, down to the gold serif royals A through 9.

The setting is a foggy gaslit London street at dusk, warm amber townhouses receding into a smoky sky on both sides of the reels, the title picked out in ornate red-gold blackletter overhead. It's an older Playtech build and it plays like one. No buy option, no jackpot, no side wagers, just the two feature triggers and that criminal wild carrying the paytable.