MECC released a DOS version of The Oregon Trail that was essentially identical to the Apple II version. However, the graphics had to be redrawn for the DOS version, using a different color palette and a slightly different resolution – and therefore screen shots of the DOS version are slightly different than the corresponding Apple II screen shots.
An "enhanced" version of the first game in the King's Quest series released several years later which utilized the SCI (Sierra's Creative Interpreter) graphics engine. It also included other improvements such as sound card support (with a corresponding in-game soundtrack) as well as an expanded story which alters some aspects of the original gameplay as a result. This version was included in several King's Quest Collections over the years, often alongside the original version of the game.
A port of Wonder Boy III: The Dragon's Trap developed by Hudson Soft for the PC-Engine. It was released in Japan under the title of Adventure Island, shouldn't be confused with the Adventure Island series, also by Hudson Soft.
Tetris is a Windows port of the game included as part of the first Microsoft Windows Entertainment Pack, and later re-released as part of Microsoft's Best Of Windows Entertainment Pack.