Two or three years ago Jeff ‘Lehm’ Adams began modeling the Guild Hall from the Myst Online: Uru Live game’s concept art. I later started modeling it for my use in OpenSim. I had started building a replica of the guild hall in OpenSim before the introduction of mesh. So, it was being built with prims, which was rather limiting. Once mesh was on the horizon I lost interest in the prim build.
Jeff had RL distractions. Neither of us was doing much with the Guild Hall. Now he apparently has had some time and has moved his work into the Unreal Engine and made a standalone model available in an executable Unreal file.
You can find a copy of the Guild Hall linked to from the Myst Uru forum.
I haven’t worked on my model of the Guild for some time, years. Walking around in his model and walking in my model is very different. Seeing his nearing completion rekindles my interest. I need to get Blender’s procedural textures figured out and generate some textures.