But what do you do about all those people? Refund all of them? I've seen quite a few that play Starsector because it work on their low end 32 bits system unlike so many games now.
1. If you buy an Alpha product and it's during a huge tech shift that required moving to a new OS paradigm, then no, I don't think you get a refund later.
2. Look, I hung on to 32-bit (for business reasons) a lot longer than most folks did, and I totally understand that not everybody can afford to upgrade, etc., but at this point it's not worthwhile to continue legacy support. As it is, unless you're playing Vanilla, you're well past the 32-bit RAM limits, and that's unlikely to change.
I know that with Java, we're getting some of the best of both worlds, in the sense of legacy support in the VMs, but I don't think planning around that is sensible; when the game makes it to Steam / GoG / etc., the audience there is overwhelmingly 64-bit these days.