This is a paid asset, but now you can download Forest Pixel Art Tileset for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
For more detail this asset from the Unity Asset Store: Click Here
Forest Pixel Art Tileset v1.0 (Latest version)
“If possible, please buy the package to support the developer”
This pack for creating forest locations includes: Foreground Tiles – 13 (Dimenion – 16×16). Background Tiles – 26 (Dimenion – 16×16). Set of objects – boxes, stones, chests, platforms, stone structures, grass and bushes and etc. Collectables objects – 1up, star, coin. Trees – 3 foreground and 2 backgrounds. Parallax background – 3 layers(Dimenion – 258×217). Non Parallax background(Dimenion – 258×217). Character and 3 animations for him(Idle, jump, run). More of my tilesets are here: https://graphicriver.net/user/sadbeaver/portfolio
