Sold it Slot by Evoplay

Four distinct Wild Bidder characters occupy reels 1, 2, 4, and 5, each one revealing a multiplier when it lands. That multiplier starts at x1 and climbs by one for every new Bidder that appears during a session. When multiple Bidders sit on the same payline, their multipliers are summed rather than multiplied - a distinction that matters once those values start climbing past x3 or x4.

Triggering the Antique Free Spins requires both a Scatter on reel 3 and at least one Wild Bidder visible at the same time. That dual condition makes entry tighter than a standard three-scatter trigger, but the payoff is significant: all Bidders present at the trigger point lock in place as sticky wilds for the full 8 spins, each carrying a x1 multiplier. New Bidders that land during the bonus inherit the current highest multiplier plus one and also stick. The reel grid fills up with locked wilds whose multipliers keep growing.

Scatter symbols continue to appear on the center reel during free spins, and each one bumps every locked Wild's multiplier by +1. So a Scatter on spin 4 with five sticky Bidders adds +5 total multiplier value across the board in one hit. The interplay between new Bidders raising the ceiling and Scatters lifting all values simultaneously is where the real escalation happens.

The auction room setting features an auctioneer character standing beside the reels, with antique collectibles - a gramophone, jade cat statue, gemstones, and gold coins - serving as regular symbols. A Bonus Buy variant also exists for players who want to skip straight to the free spins round.