At some point it just makes more sense to run emulators, like it is already done with the classic gaming consoles.

Ideally, we would get a push to release source after a given time, in order to have true conservation efforts.

7 Kingdoms had its source released and was almost instantly ported to run natively on Linux. And from someone who played that game as a teen and truly enjoyed it, I admit it's not that much of a game! There are thousands of titles that deserve this attention.

Off the top of my head I can think of:

• Black&White
• The Punisher (this title was even censored due to graphical content)
• the original Starcraft and Warcraft
• Pharaoh
• Anno 1602 (I am aware a FOSS "clone" exists)
• Evolva
• Syndicate

I could go on forever...