A Chisel plugin that allows you to add to the normal light intensity for a given light, without changing that light... vastly reducing the number of lights needed. (The demo map included shows 11 distinct lighting effects... and it uses exactly ONE light.) It only works on walls, and a wall can display only one value of the ambient delta field... but if you're building complicated levels, and have run into lighting limits... check this out.

This is a Chisel plugin that allows you to set the permutation field of polygons, which specifies what certain poly types do. The possibilities are limited only by your imagination.

A Chisel plugin that allows you to auto-create staircases (finally reproducing the Script effect of Phforte 1.x!). Straightforward, simple - it does one thing, it does it right. Check the readme for minor caveats (mostly common-sense stuff).

8 solo levels (and a couple of net levels) - this is a very nicely laid-out project (and quite difficult in parts). Overall, flow is great, though, and the gameplay will keep you wide awake. Definitely worth playing.