Out of date congratulations message

Issue description

I just launched my first rocket! Yay!
The credits screen appeared and I was then told I could continue playing and there was more content to come...
I presume the conmtent's already arrived.

Reproduction steps

get to the point where the rocket is launched.

Game version and build number

v0.7.5b b454

Operating system

Windows

I no longer see any message promising more content in the credits screen or victory message, so closing.