By this version, the game had shifted toward "Firefighting" mechanics introduced in the Ontario season. Players are required to manage water tanks to extinguish forest fires, adding a new layer of logistics beyond simple delivery. Version 21.3 specifically smoothed out the water-refilling UI and improved the handling of water-carrier trailers.
Optimization for next-gen consoles (PS5/Xbox Series X) regarding 4K textures and 60 FPS stability. SnowRunner Premium Edition [v21.3]
: Amur, Russia (noted as the most difficult region in the game). By this version, the game had shifted toward