During the Closed Alpha, the map will be approximately 7.5 x 7.5km (or 56km²) for 36 players per server. And in its final version, Dead Matter will have a gigantic map of 256km² for 60 to 80 players per server.
The map will be entirely inspired by the region of Alberta located in Canada, which will be very similar to the landscape of The Walking Dead series.
Note that there will be hidden places such as bunkers, caves, or military camps. On the weather side, there will be a 4-season system as in everyday life, ranging from a very cold period during winter to a more summer period.