Windows 3.0 arrived in 1990 and 3.1 in 1992, running as a graphical shell over DOS. It brought Windows gaming to a wide audience, mostly light and casual at first.
Bundled games like Solitaire, Minesweeper and Hearts reached millions, while SkiFree and a wave of shareware filled out the catalogue before DirectX and Windows 95 took over.
You now run most Windows 3.x games through DOS-based emulators or compatibility layers on modern systems.