I have an eternal list of PbtA games I want to play (The Veil & Urban Shadows are the first that come to mind but there are so many more), but a newer one I’ve really had my eye on lately is Armour Astir.
As for why, as a huge fan of mecha anime and PbtA, I’m really excited to see someone making a game specifically for that genre. For the past few years trying to scratch that itch has been a matter of trying to make do with various hacks to The Sprawl, The Veil, or Uncharted Worlds, which are all great games in their own rights, but there’s something particularly satisfying about playing a game you know was really intended for the experience you’re after-- and from what I’ve seen of early drafts, the author is doing a great job ^___^
Also, outside of my usual PbtA wheelhouse but still firmly in my weeb wheelhouse, I’ve been really interested in Ryuutama and Tenra Bansho Zero for awhile now and would love to play both of those some day.