Cyber Oppression

While on the topic of abandonwarez, I thought I would also link this site.  The Home of the Underdogs is a repository for primarily DOS software that is no longer on the market and is obsolete, but is still under copyright protection.  The site has a policy of linking to a reseller instead of offering a download for any program that is still available for sale somewhere, and of removing any software at the copyright holder’s request.
If you want to be  able to actually download and play some of these old games, the Dosbox emulator emulates a dos machine on modern Apple OSX, Linux, and Windows computers.  It can take a little tweaking to get some games working but in general it is the best way to play these old games.