https://steamdb.info/app/353640/
Train Valley can be added to your account for free.
Method 1: You can click on Install in SteamDB.
use this link to add to your library.
https://steamdb.info/app/353640/
Method 2: Press the Windows button (between Ctrl and Alt) and R at the same time, in the window that appears, enter:
steam://install/353640
Steam product: https://store.steampowered.com/app/353640/Train_Valley/
Displayed as "Biped: Prologue" in licenses.
Displayed as "Train Valley" in the library.