It's hard to preserve classic videogames as a lot of this software is lost. But it's even harder for the code of most academic and research projects, which achieved no more than niche and limited distribution in the first place and whose servers and repositories are long gone.
@amoroso true. All the code written for my PhD work is long long gone... Not that it was very valuable, but it is gone anyway.
@gpowerf It may not seem valuable when you do the work, but it can turn into a great resource decades later.