This is not a complete game. I spent way too much time trying to develop a complicated setup, making this my first flash game and only 3 flash anything that I've ever done.
Right now you can login and fly anywhere in a persistent universe filled with planets. Rename planets. If there are other people on, they should show up as aliens.
Totally buggy but have a look
Couples notes:

When it is in text input, hit esc to get out . There is a bug that sets it in text input right when you start.

There are two modes of travel: Sail and Thrust. T toggles what mode you are in. In 'Sail' mode, you get pushed around by the gravity of nearby planets in a pretty unpredictable manner. In Thrust, you don't and can manuever. You start in 'Sail' mode so you'll need to change to thrust to approach a planet.

When you fly to the middle of a planet, the name of the planet will show up. You can rename it at that time if you wish.

Warp ('R') only works if you have come to a stop. A bug currently doesn't allow you to input negative numbers

I am continuing this project for Tigsource Assemblee and will post a link later if anyone wants to see updates