Forts is a physics-based RTS where foes design and build custom bases, arm them to the teeth and blast their opponent's creations to rubble. It's a strategy game developed and distributed by EarthWork Games in 2017.
System requirements for desktop computers as stated by the developer. Updated on September 25, 2020.
The system requirements are lightweight; nearly any new laptops will work for playing Forts.
The RAM requirement of 4gb is easily met.
Also, note that at least 1gb of storage space is required.