Having been part of a relatively popular game shut down, we agonised over this. There were several reasons given, from “we might use it again in the future” an

Having been part of a relatively popular game shut down, we agonised over this. There were several reasons given, from “we might use it again in the future” and “we’ll need to be really careful about the database” I suspect there was also a case of some embarrassment, as some of the code was far worse than an outsider might imagine :-) Ultimately we just deemed it too much effort to release it as even if you explicitly state it’s totally unsupported, people will go to really strange stalker-esque lengths to try and contact the original devs for any level of support, and we just didn’t want, nor have time to deal with that burden. Note, my memory is a little hazy around all of the details, so I can’t quite remember all of the finer points. I do remember that the topic would repeat in passing as an “ah, I wish we could...” for a very long time after the call was made.