Five Nations is a real-time sci-fi strategy game for PC platform. It's an indie game produced and published by SilverForge in May 4, 2021. Encompassing tactical combat in space in real-time mixed with micromanagement of economy, construction, and production featuring different kind of single player modes.
The system requirements are light; almost any modern laptops will work for playing Five Nations.
The RAM requirement of 4gb is easily covered.
Take account that at least 1.5gb of disk space is needed.