Highway Blossoms is a short yuri story set in the American Midwest. After an old gold rush miner’s journal is discovered, a nationwide craze begins as would-be prospectors try to solve the cryptic clues it contains and discover the miner’s hidden treasure. Amber, couldn’t care less. Wandering the Southwest in an inherited motorhome, she mourns the loss of her grandfather, totally unaware of the hunt taking place around her. It’s not until she meets Marina, a young hitchhiker wandering through the deserts of New Mexico, that things start to look up.
From the official site.
You can get the all-ages edition from Steam here.
Since the game is a kinetic novel, Highway Blossoms does not need a walkthrough.