Brazil Bomba Slot by Yggdrasil Gaming

The multiplier rule does something most cluster-cascade engines don't. Every dropdown win or Bomb explosion ticks the multiplier up by one for the next drop, and there is no cap. In the base round it resets the moment a dropdown produces nothing, which keeps it volatile but moderate. Inside Free Spins the reset is gone entirely, so the counter accumulates across the whole round however long it runs. The carry-over goes one step further: whatever multiplier you're sitting on when scatters trigger gets handed to Free Spins as the starting value. Hit Free Spins on the back of a x5 base run and the bonus opens at x5 instead of x1.

Wins land as clusters of 6 or more matching symbols touching side-by-side or diagonally on the 6x8 board, with cluster sizes paying in tiers all the way up to 48 connected icons. Three, four, five or six drum scatters award 5, 10, 15 or 20 Free Spins, retriggerable from inside the round, and the higher trigger tiers exist mainly so a clean 6-scatter hit pulls 20 spins of uncapped multiplier accumulation in one go. The Bomb symbol is the safety net for the base game's reset rule. On the first losing dropdown of any spin, a Bomb on the grid detonates in a star-shaped pattern, clearing up to 16 cells and forcing one more drop. Only one Bomb fires per dropdown, and the explosion deliberately spares scatters and other Bomb symbols so a chain trigger remains possible.

The setting is a Rio Carnaval scene at dusk, the cabinet flanked by a samba dancer in feathered headdress holding what looks like a maracas-rattle, palm trees and lantern posts on either side, and a violet-pink sky over distant mountain silhouettes. High symbols are tropical icons painted in saturated jewel tones, lows are gem-cut fruit shapes against the dark grid, and the Bomb is a black cartoon sphere with a lit fuse. No buy bonus and no ante toggle, which for a 2020 Yggdrasil release is unusual on its own. Max win sits at 6,218x on the API spec, with web-quoted theoretical figures running higher because of how the uncapped Free Spins multiplier compounds when a long run holds together.