For those who don't know what it is, it's an isometric RPG that's been in development for YEEEEEEEEEEEEEEEEEEARS.
The Age of Decadence is a pseudo-isometric 3D turn-based role-playing video game for Microsoft Windows by Iron Tower Studio, led by the pseudonymous "Vince D. Weller". Set in a low-magic, post-apocalyptic world inspired by the fall of the Roman Empire, The Age of Decadence aims to return to the 'golden era' of role-playing games by emphasizing choices and consequences and providing a comprehensive skill set, multiple solutions to quests, and extensive dialogue trees.
I played the beta briefly a few years ago, and the combat was quite challenging from what I remember.