This is a FreeSpace 2 mod where FreeSpace 2 got ripped out and replaced by a satiric luddonarrative commentary on Beta Testing, a transformatively transformative Evangelion-like story, and enough mods that barely hold the resulting creation together. You will also bake cakes.
Release for Just Another Day 2.21, released on Jan 23 2017
Might also want to check out the Getting Started forum on HLP if this is all new to you.
The Easy Way
Download it on the FSO Installer
The Hard Way
(Note you don't need the JAD builds in particular. You can also use the latest nightly FSO builds if you are feeling brave!)
And be sure to check out all the other amazing FreeSpace mods!