I've been sitting on an 'Alpha' version of Hightown for several months now. I didn't release it thus far as I had nearly come to the conclusion that Hightown just wasn't going to be feasible. Mainly there are major performance issues with the mod, stemming from two factors. Firstly the town itself is very complex and taxes even good machines considerably. Secondly there are 40 unique NPCs in the town at any moment. I have realised that this is extremely tough on the engine and will cause severe performance issues.
Neither of these issues can really be resolved without pretty much re-imagining the whole of Hightown. I am not so keen to do that, considering all the work that went into it so far. So I have been sitting on the mod in a rough, but near complete state for several months now. I have finally worked up the energy to package it up and release it for anyone who is still interested.
I may continue work on it, but whether I do or not really depends on how serious the issues I have mentioned are for other people. There are a few secondary issues as well, mostly related to the Navmesh, that have made the entire design of Hightown fall into question. Nevertheless, I am releasing this Alpha in an 'as is' state. Enjoy it for what it is, and don't expect a smooth experience. If you do notice big bugs, it wouldn't hurt to report them, but I can't promise that I will provide support or fix them.
Head to the download section to find the Alpha.