If a recommendation algorithm for games like this existed - smarter discovery that actually respects older games - would you use it?

So long as it properly accounts for how needlessly inaccessible those older games tend to be. Which means, the algorithm has to also be good enough to recommend good pirate sources (and procedures), good tutorials for making stuff work, etc. There’s no sense for me in getting recommended cool videogames from the 80s or 90s I can’t play, the same way there’s no sense for me in getting recommended cool TV shows from the 80s or 90s that are not even airing in the designated eternal-syndications channels in TV cable.