Overland is a strategy game developed and published by Finji in 2019. Take care of a group of travelers on a post-apocalyptic road-trip across the United States in this turn-based survival game.
The system requirements are lightweight; almost any new laptops will work for playing Overland.
The RAM requirement of 4gb is easily met.
Also, note that at least 1.5gb of hard drive space is required.