I recently completed a playthrough on 0.49, with the Total Overhaul pack.

It's remarkable what modders have done. They've breathed a lot of life into such an old game.

Don't be fooled though, even with OpenMW it still runs quite poorly at times. Any water reflections cause effectively the whole scene to be rendered twice, and it just kills the framerate. Many of the shaders like volumetric clouds can kill it too.

And if you have one of those mods that messes with waterfalls, that'll do it as well. Or if you allow the sun to get really close to the horizon all the sudden the shadows are super long causing a bunch of extra stuff to be rendered.

It needs a lot of technical work like proper occlusion culling, draw call batching, LOD, shadow culling, etc.

I'm hopeful though, it's an amazing project!

EDIT: Also dear god give me a proper UI for filtering and sorting in things like shops and (mainly) containers. It's so painful right now.