[Android, Epic] Free - Botany Manor @ Epic Games

Welcome to Botany Manor, a stately home in 19th century England. You play as inhabitant Arabella Greene, a retired botanist. Explore your house and gardens, filled with research, to figure out the ideal habitat of forgotten flora.

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

iOS store link

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Also available:
[PC, Epic] Free - Botany Manor @ Epic Games
[PC, Epic] Free DLC - Pixel Gun 3D Poison Retro Set @ Epic Games