This allows to run the game with Seeker with better item unlock

1. Open steam console: steam://nav/console
2. Write "download_depot 593700 593701 6380194684168746442" For Windows "download_depot 593700 593702 7697495073797916917" For Mac
3. After the download is done, Steam will show you where the files were downloaded to.
4. Go to the game's installation directory, and move the files somewhere else. Then go to where the depot files were downloaded to, and move everything over to the game folder.

Adapted from https://www.reddit.com/r/Steam/comments/611h5e/guide_how_to_download_older_versions_of_a_game_on/