abandonware games sorted by popularity

BC Racers is a DOS unconventional (to say the least) racing game that features a prehistoric theme, designed by Martin Gibbons, developed and published by Core Design in 1955. It's the third game in the Chuck Rock series, the first two being platformers not available for PC.

Cabal is an abandoned arcade conversion of a popular shooter game set in Southeast Asia during the Vietnam War. Cabal was developed by TAD Corporation and released by Capcom in 1989 for DOS.

Acrobat Reader was the first of a family of application software developed by Adobe Inc. to view, create, manipulate, print and manage Portable Document Format (PDF) files. Acrobat Reader 1 was released in 1993 for DOS and Mac.