A free tileset pack titled Oak Woods for side-scrollers and RPGs is available on Itch.io .
There is a custom-made park called Oakwood Adventures that can be downloaded via Dropbox for use in the game Planet Coaster. Oak Woods — Environment Asset by brullov - Itch.io Oakwood Free Download
If you are looking for creative "pieces" or textures named Oakwood, several platforms offer free downloads: A free tileset pack titled Oak Woods for