Frostpunk Demo

The Demo version of Frostpunk was released around December 2017. The first ten days of the Main Campain were available to play.

Buildings

 * Steam Hub is a building of size of 4x2 instead of 6x3.
 * Cookhouse size is 4x2. It converts five Raw Food into into ten Food Rations. This is increased to 13 when the soup law is signed.
 * Hunters' Hut size is 4x2 instead of 6x3 and it employs a maximum of 10 Hunters instead of 15.

Technology Tree

 * Heaters (Technology) and Improved Heaters (Technology) are unavailable the alternative is the technology Boilers.

Laws

 * Alternative Food Source (Law) are unlocked by default.

Sources: https://www.youtube.com/watch?v=4IoOdpMaFvs