This is excellent.  Thank you.  I'm a owner of the orig. GCIV and supernova on epic, but would prefer to have it on Steam.  

I try to transfer my GC IV from Epic to Steam and followed the link. i found nothing which supports me to transfer the key.
how to do this?

Thanks for this. I'll be very happy to pay 16 bucks on Steam to continue to support the devs.

Nice work Frogboy / Draginol / whateveryoucallyourself

I don't really mind whether it's on Steam or Epic tbh but a larger community of players means more $ for Stardock, and hopefully more spent on development of a game with huge potential.

In the back of my mind I've always been afraid of the Epic Games store dying a quick death ... I don't know how they sustain it when it's unprofitable!

For those needing assistance in this matter, please visit the following forum page:

https://forums.galciv4.com/518620/

The base version in Steam IS Supernova, not the original release on Epic.

You can already do that. If you own the copy on Epic you can buy the expansion on Steam for $15. 

Ok I have the Steam key in my email, what do I do next for supernova to show up in Steam?

Thank you so much, it is downloading as I type this. Never had to do it this way and appreciate the fast response.   

Just redeemed my steam key.  I know alot of people had issues with Epic (it didn't bother me, only switched to steam for cloud saves) but I think SD deserve credit for making the key transfer possible, they were under no obligation to do so.

Thanks Guys. 

Thank you for the opportunity to transfer the game to steam. It turned out)) Everyone is looking forward to the translation into other languages. Maybe it’s worth posting them for the impatient as a mod on Steam or directly in the game itself? (which can be turned off at any time if something happens) I think many would say thanks for at least some kind of translation, such as resources or characteristics of characters, buildings.