Hi, this is a game I've been working for since the beginning of the year. It's not close to being finished yet, but when it is done, it will be a sandbox game--more of a game construction set than anything. Players can design their own interactive levels, then create a server for others to play: you could make a free build server, an interactive story, a chat/hangout/scenery place, CTF in planes, Worms clone, you name it... To make your server dynamic you write Lua scripts, then give players scripted tools to interact with it.
Here are some random screenshots, in order from most recent to oldest:
Last one was from January 11th, it's definitely come a long way.
I only have an old buggy alpha build up, sorry: http://1scripts.net/buildsim/test/play.php
It is a month old, I've fixed a lot of bugs since then and would put the new one up, but I'm currently rewriting the game to use a different lua library (old one used JNI and was extremely buggy and crashy)
If you want to report bugs or give me suggestions you can, main reason I'm posting this is that I wanted a dev log somewhere and to possibly get some interested people (to keep me motivated)