Epic Games recently did an AMA (Ask me anything) in the community Discord server, confirming that a Linux / SteamOS version of the Epic Games Store is coming.

I really don’t like Epic personally, but this is still pretty huge. Linux and SteamOS have come a long way. CEO Tim Sweeney has always been very negative towards the idea of Linux support, so Epic changing that stance would suggest that Linux/SteamOS has finally become too big of a market to ignore.