Doctor Dust

Doctor Dust is a horror and sci-fi themed slot by Bullshark Games, with a 96.3% RTP, high volatility and a maximum win of 12,000x. The game uses 5 reels with cluster pays mechanics.

Cascading reels trigger after wins, dropping symbols to create further combinations. A wild symbol substitutes in winning clusters. A re-spin feature allows additional spins during the base game.

The symbol collection mechanic feeds a Grid Boosters bar as symbols accumulate. Grid Boosters trigger sequentially after the grid settles, with four types available: Clone, Switch, Wilds and Power Line. These boosters create chained reactions and apply cell multipliers to the grid.

Surface Search triggers when 40 symbols are collected, awarding one spin with all boosters active. During Surface Search, the collection bar fills segments, and each filled segment grants an additional free spin. The feature ends when no segments fill during a spin.

Toxic Vault triggers at 72 collected symbols, starting with a middle counter at 4. The feature awards two free spins initially and guarantees a second spin with all boosters active. Spins continue if the collection bar fills.

BonusHunt FeatureSpins begins with a collection counter at 4 and offers a triple bonus trigger chance. Dust Raid FeatureSpins starts with a collection counter at 8 and guarantees a Grid Booster on trigger.

A Surface Search buy option launches the 40-symbol feature directly. A Toxic Vault buy option launches the 72-symbol feature directly.