PERMAFROST / Survival guides
Co-op guide
Party size, team preparation and session details to check.
Party size
Permafrost supports solo play or online co-op with up to three friends: four players in total.
Sources: Steam：永冻纪元 - Permafrost
Agree on the next shelter
Suggested routine: choose the next shelter together, divide gathering responsibilities and agree when to return.
Sources: Steam：永冻纪元 - Permafrost
Check companion access together
The dog guide describes carrying support but not guest permissions. Check who can access its inventory before relying on shared supplies.
Sources: Your Best Friend
Do not assume Playtest progress carries over
The October Playtest announcement sets a test end date; it does not establish Early Access save compatibility. Check the current session and save options before committing to a long run.