Teslamania Slot by Gamebeat

Nikola Tesla stands left of the reels as the host character, an aged inventor with wild white hair, brass goggles pushed up on his forehead, dark gauntleted gloves crackling with arcs of electricity he holds between his palms. The laboratory behind him is pure steampunk fever dream: a giant arched window framed by riveted copper machinery, brass gears bolted to the reel cabinet, exposed wiring snaking up into the rafters, and a tungsten-yellow furnace glow leaking from the left side. The "TeslaMania" logo runs across the top in electric-blue glow-script, the kind of lettering that looks like it was traced in plasma.

This is the prototype of Gamebeat's Tesla Rush engine, the namesake. Every Hold and Win game the studio has put out since (the Fortune of Flint pirate reskin being the most obvious) inherits the exact paytable, coin denominations, and four-tier jackpot scheme that started here. Six or more coin symbols on a single spin lock in place and kick off three respins, with each fresh coin resetting the counter. Coin values run 1x, 2x, 3x, 4x, 5x, 10x, 15x, 20x, 50x, 100x, 500x, 1,000x, all the way up to a single 5,000x medallion. Above the grid sit four jackpot ribbons that stay visible at all times: MINI 100x, MINOR 500x, MAJOR 1,000x, and a MEGA at 5,000x bet that is unusually fat for the studio's catalog.

Base play stacks three things on top of each other, which the welcome card spells out plainly. Expanding wilds stretch to fill the reel they land on and carry a multiplier badge up to x10. The lightning-bolt scatter pays directly at 10x, 30x, and 100x for three, four, or five, and the same three scatters also open up to 25 free spins with sticky features that persist between spins. Coins land in the base game too, feeding the trigger for Tesla Rush. The interaction is the point: a wild expansion plus a x10 badge plus a fat coin landing on the same spin is how the 15,000x ceiling actually gets touched.

Default stake comes in at 1.00 FUN rather than the 0.10 most Gamebeat titles preset, a small thing but it tells you who the math was tuned for. No Buy Bonus, which keeps with the studio's Hold and Win discipline.