Turmoil: The Heat Is On

The Heat Is On introduces a new campaign set across a fresh oil-rich map divided into three areas. Each area brings new drilling mechanics powered by magma, a new underground substance, and a cast of characters including Jack, who runs a magma tools operation, and Philip, who hosts a card game in the saloon. Familiar faces such as Edward, Fred, and William return, now arriving by train wagon so players can restock drilling gear immediately.

The new mayor operates differently from his predecessor, offering free tips and running a revised auction system, though shares still cost money. Gas usage has been made more accessible from the start, with Left and Right Inc. arriving with built-in gas intake capabilities, removing the need for expensive early upgrades. The metagame expands significantly with nine collectible underground treasures that can be dug up or traded for meaningful benefits, replacing the previous diamond system.

Anthony returns with his own store for buying and selling underground treasures, and the village gains additional activities including the card game run by Philip. The DLC also includes new music tracks and, for those who notice, a cat wandering around town.