Invite your friends and try the full version of Wild Terra 2 for free from August 13th, 16:00 UTC to August 16th, 16:00 UTC.
Free Weekend access will appear on the game's Steam page in the Demo section:
https://store.steampowered.com/app/1134700/
During the promotion, the game can be purchased with a 40% discount. You will also be able to continue playing while saving your progress.