I am sorta new to the scene, though one of the main reasons I was wondering if they'd make a compatible version is because dnd 5e is the main big system, and honestly what I find to be easiest to use. So finding a ttrpg for a game I love is great, but some may find it hard to learn new things for each variation. (also in my opinion the class system in and is in for a long overdue makeover anyways) I never wanted to change how most of the mechanics work, but something that would work with dnd 5th would be great so that I can bring my little bug character along the adventure with a human fighter and orc barbarian.
Viewing post in The Unofficial Hollow Knight RPG comments
Gonna be honest, my man, you're *probably* going to struggle to find a DM that will allow a Hollow Knight character in their game. And even then, you're going to have more luck just reskinning current stuff in 5 or upcoming 5.5e.
Hollow Knight has a very different magic and melee system from DnD, and a ttrpg that replicates that is going to be so different, by default, that its just not worth even considering system compatibility with DnD.