ffaf Thanks for opening this thread, I am much interested in long time preservation and I wonder which technologies should I use to have my games available and playable for a long time.
You're welcome. It's good to see others with an interest in historical preservation. I'll admit I'm not too knowledgeable regarding the technologies to which you refer. I've researched the subject "preservation technologies", but my search engine has not been very helpful in giving me much insight. I guess all I can say regarding that is if you find any helpful technologies, then perhaps you should take advantage of them, but otherwise one should generally just try to be aware of changing standards and try their best to adapt where they need to. Maybe it would also be good to copy work to multiple code repository sites (or just sites in general, like perhaps the Internet Archive) or something like that. That way, you get more people able to contribute, which means people can contribute changes based on changing standards.
ffaf I suspect mods, conversions, additional missions, etc. of free games (especially if published on forums) have a high chance of getting lost over time.
I think that would make sense. A lot of fan-made content for games such as SuperTux, SuperTuxKart, and Minetest are posted to forum boards instead of places like ContentDB (for Minetest), so I suspect there might be a number of obscure mods or add-ons that may have become lost to time due to not getting enough attention.
Sorry if it took a while to say anything. Responses can be somewhat hard to come up with, which might also explain why some of this response may or may not seem a bit awkward sounding. Feedback would be appreciated if I've made any mistakes or misunderstandings.
EDIT: Removed redundant reply indicator thing from the top.