The Internet Archive has an emulator for SSG’s MS-DOS game, Carriers At War. The 1992 game ha a number of Pacific Battles to fight out. I enjoyed this back in the day.
The Internet Archive has an emulator for playing Nuclear War, an MS-DOS game from 1989.
The classic Ancient Art of War game, released by Broderbund in 1984, is available to play on archive.org in an emulator.
Card Creator is a piece of software that helps you design your own Magic-style cards.
In 1982, Beam Software and Melbourne House released the first computer game explicitly based on Tolkien’s work. You can play the old school Hobbit text adventure game online here.