Abandonware is
computer software that is no longer current, but is still of historical, utilitarian, or recreational interest. While the term has largely referred to older games, other classes of software, for want of a better term, also fall under the definition. Furthermore, the creator of the software often no longer sells or supports the software, and in some cases the creator may no longer exist.
The term has no legal meaning, and much abandonware is not in the
public domain, so it cannot necessarily be legally copied or distributed without the permission of the owner.