Oops...I misunderstood the OP. I am currently running a bi-weekly Warhammer Fantasy Roleplay campaign using the Zweihander ruleset. We've been doing it for about three and a half years now, and have had loads of fun. :)
@sgtnasty I mainly play solo. After some time enjoying the Neverland setting with the solo rules from Scarlett Heroes for OSR, I have started a character with Ironsworn: Starforged. It didn't click a year ago when I tried before, but I am starting to appreciate what Shawn Tomkin did with this book.
I mostly play solo and I'm on a kick of using the "BORG" games to flavor the Ironsworns. So, a MORK BORG flavored Ironsworn, a CY_BORG flavored Ironsworn:Starforged, and soon a PIRATE BORG flavored Ironsworn:Sundered Isles.
Also, Thousand Year Old Vampire, but it barely a game and more of a creative writing exercise.
PS: My goal is to run Cyberpunk Red using Ironsworn:Starforged for core and Ironsworn:Delve for netrunning dives. I just haven't had the time to fully put together that toolkit.
@sgtnasty I'm currently running one Pathfinder 2 game, prepping for a game of Protect the Child (a forged in the Dark playtest by @mintrabbit ), and writing up for play my own Fate Condensed setting.
If only :D
I think the biggest problem with Mythras as-written in the book is that stat allocation is super tedious on top of everything else the core book suggests you come up with at character creation. The Mythras Companion and lot of systems derived from Mythras like Odd Soot have come up with the idea of giving people "blocks of points" to allocate, so you're not doing nearly as much bean counting.
On the PC I currently play Outward as P&P DnD(which I personally like less and less), Pathfinder(the better DnD xD), Cyberpunk is currently replaced by Los Muertos, Aborea and Butterfly Aspect.