There's Half Sword, which has a demo and playtest on steam. It's all physics-based medieval combat. Your guy moves kinda like QWOP, and your arms can be controlled individually. You swing your arms with the mouse while holding a click, as it'll lock onto the nearest enemy when you do, and kinda like in Zomboid you want to hit them with the tip of your weapon using the most momentum possible in the swing.

I just remembered another good one: We who are about to die.