Furnace expands into the 1920s and 1930s – the interwar period known as the interwar period. In this expansion you'll find new Company cards and Capitalists, new skills, Manager tokens, variable Capital Tokens, a set of parts for a fifth player, and new Agents for two-player and one-player games. All this is located in beautiful industrial buildings and structures from the era of Art Deco, Constructivism and Bauhaus.

Interbellum is designed for players who are already familiar with Furnace. The expansion is best played when all the elements are added to the base game, but if you're not ready yet, you can learn it bit by bit.