Currently, there are several expansions available that are either completely free or included in the base game experience:
is a popular simulation game focused on renovating, expanding, and managing a desert gas station. While the base game is a paid title, the developers at DRAGO entertainment frequently release free DLC and updates to keep the gameplay fresh. Free DLC and Expansions
This major free expansion allows you to restore an old drive-in theater lot. You can set up a massive outdoor screen, validate tickets, and even run a popcorn machine to maximize your station's revenue.