Nice list you've made.
Here's my contribution to make it a complete one:
Solar Struggle
Its a 2D Space Shooter in a full 3D Setting, similar to Wing Commander Arena & Battlestar Galactica, but (of course) way better. ;-)
It features several Spaceships wich can be equipped with a wide variety of Weapons and supportive Systems to bring some tactical Elements into the Action.
The goal is to create an intense large-scale Space-Battlefield Atmosphere packed in an "Space-Wild-West" Story-Setting (i was inspired by the TV-Series Firefly) without any Alien Invasions. :-)
By the Way because it's my first Post here:
Hello everybody!