Available for purchase in Unreal Marketplace:
https://www.unrealengine.com/marketplace/en-US/product/fantasy-tree-house-prop-bundle
and Unity Asset Store:
https://assetstore.unity.com/packages/slug/163646
Stylized Tree House props, very optimized, using only 2 texture sets (PBR). Ready for RPG, top down, isometric, platformer, RTS... It contains plants, mushrooms, barrel, crate, lamp and wood elements like bridges, wooden floors, ladder, stairs... for fill your own medieval or fantasy environments.