Well, I'm about 70% done with the mechanics and I'm glad I switched to "Extra". While I won't make the Jam end (pushing for that would be burnout), I plan on being done by Friday with a alpha / beta version.

Here's a preview - this is Conduit Courier, styled as a bit of a mashup of Pipe Dreams and Mini Metro:

The goal is to reach three destinations per level, routing pipes to each destination location from base before their package gets shot through the pneumatic system. You start with $1000 - placing pipes costs money, and using more pipes will cause the price to go up. Link places successfully though, and you earn more money!

Fail to link the destinations though before the timer runs out, or the package reaches the end of it's line without getting to the target, and that's lost income. Losing three packages is game over for the level.