This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.
LN - further notes from CharlieT:
This is a global problem. If you go through and add the game to your steam account it will pull up the correct name. However, if you just boot up the game while steam is up it will show that you are playing spacewars and so if you try and invite someone that is were it will try and place you.
When trying to invite another player via steam to multiplayer shootout the other player is sent an invite to the game spacewars
Head over to the existing Questions & Answers thread and let us know what's up.