Game owners can access the guide from the steam menu, or the doc folder of the game.
Non game owners can download a copy from team-jungle.com:
www.team-jungle.com/images/doc/gamer_guide.pdf
Thank you
v1.20 Gamer Guide added
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 3465349 · public branch
Steam updated · First observed