Microsoft has published at least 3 games that have become abandonware

Browse games published by Microsoft

Download Microsoft Decathlon, Microsoft Flight Simulator (v1.0), Microsoft Flight Simulator (v2.0), abandonware games edited by Microsoft between 1980 and 1997.

Microsoft Decathlon

1982

Microsoft Flight Simulator (v1.0)

1982

Microsoft Flight Simulator (v2.0)

1984