While PCem is a more accurate emulator (it's very close to cycle-accurate even), I keep an installation of Windows 3.1 on DosBox around to play really old games

While PCem is a more accurate emulator (it's very close to cycle-accurate even), I keep an installation of Windows 3.1 on DosBox around to play really old games. It works for 16-bit games like the original SimTower. Maybe one day I'll get adventurous and see if Windows 98 will run on DosBox.