Bohemia Interactive together with 11 bit studios prepared a promotional bundle on Steam called Frostbite Pack.
You can get DayZ Frostline, a new DLC with Sakhal winter theme map together with a survival city builder-management Frostpunk 2 with a discounted price of:
By buying this bundle you can save 10% of the regular combined price of both products.
Link to the bundle: Steam.