[Android, Epic] Free - Samorost 3 @ Epic Games

Samorost 3 follows a curious space gnome who uses the powers of a magic flute to travel across the cosmos in search of its mysterious origins. Visit nine unique and alien worlds teeming with colorful challenges, creatures and surprises to discover.

https://store.epicgames.com/en-US/mobile

iOS store link

Checkout links (via web browser, you must be logged in):
Android
iOS
Both

Also available: [PC, Epic] Free - Amnesia: The Bunker & Samorost 3 @ Epic Games