I've really been enjoying the time I've spent so far reading Joe Salvador's Eldritch Tales: Lovecraftian White Box Role-Playing. It's inspired me to think of ways to bring the game's insanity rules and class skills to both fantasy and sci-fi themed OSR rules. I may be insane myself? ;) https://www.rpgnow.com/product/250356/Eldritch-Tales-Lovecraftian-White-Box-RolePlaying&affiliate_id=1446 (affiliate link) tenkars-tavern.games/patreon