A classic-style business and construction sim. It focuses on the "constructor" aspect from a management perspective, allowing you to design cars, set up factory lines, and try to make your car company profitable.
These titles are either completely free-to-play or open-source, allowing you to dive into mechanical engineering and design right away. car-constructor-pc-game-free-download-full-version
If you are looking to build, tune, and test your own automotive creations, Top Legitimate Free Car Construction Games A classic-style business and construction sim
While the full version is paid, the free demo on Steam offers a deep look into engine design. You can choose different configurations (V8, Inline 4, etc.) and tune everything from the bore and stroke to the fuel system. If you are looking to build, tune, and
: If you are on a budget, keep an eye on the Epic Games Store (which gives away free games weekly) or Steam Sales , where titles like Car Mechanic Simulator 2018 often drop below $5.
: Indie developers rely on sales to keep updating these complex physics engines.