If you want hundreds of hours of gameplay in a tiny package, these strategy legends are highly efficient: X-COM: UFO Defense : A deep tactical campaign that is around Civilization I : The game that launched the 4X genre fits into a tiny Frontier: Elite 2
: Occupying only 19 MB on your disk, this addictive puzzle game is a masterclass in efficient design. highly compressed pc games under 100mb better
(~100MB): A classic puzzle/strategy game focused on managing rail layouts and deliveries. If you want hundreds of hours of gameplay