Hi there @Kuse_Black welcome to the forums! I will answer your questions as best I can.
Does PB offer everything a first class Mecha Game?
Not sure exactly what a first class mecha game needs to succeed, but our dev team are huge fans of the genre and want to see largely the same things as our playerbase, so I’m very confident to say that if there’s a feature missing at launch it will likely be added later.
Will there be a sandbox mode?
Nothing is confirmed at this time.
will PB offer other languages besides English in Early Access or will it start with 1.0?
We are starting with English for Early Access with official translations to come after 1.0. Our other project Industries of Titan has quite a few fan translations though, so there may be similar resources on Phantom Brigade the longer the game is out.
Mod support?
The game was built from the ground up with modding in mind, so we would very much like to see community mods. Modding is technically already possible!
Can I change the key bindings?
At the moment it would be difficult to do so, but this functionality is planned for our next monthly release.
Price in €?
I only know the USD price, which is 29.99 USD.
Thanks and enjoy the game!