Samorost 3 is expected to launch on PC and Mac on March 24th for $19.99 through Steam, GOG, the Humble Store, the Mac App Store, and its official website: www.samorost3.net.
Samorost 3 Cosmic Edition - containing the full game, a digital art book and its original soundtrack - will be available for $24.99.
Please check out also the new trailer: https://youtu.be/d-b-wpPM7yA