I agree, multiplayer would be nice to have embedded in official TPT (which is entirely possible, given it's created by a developer)
By the way, for those that haven't seen it, that rainbow TPT logo is from my mod
Edit: Yeah, definitely try jacob1's mod, it also has the scripts embedded + a lot more features.
Multiplayer would be a really cool feature, but better stickman optimization would enhance the experience. Also, larger windows to simulate more particles couble be an option, if more than one person is building on screen at any given time.
The problem with changing the number of pixels in the screen is that I think the whole particle engine is based on that size, and changing the number of pixels would require a huge amount of work. I'm not sure but that's what I think.
Multiplayer would be a really cool feature
Actually, changing the size is quite easy, but there's no real need.