My name is Dave and I've been working on making my own SC2-like for the past few years now. Ironically I originally started work on it as I just really loved SC2 and was kinda mystified that the genre it invented never really took off despite its praise. Now of course we have SC:O and the title formerly known as Ghost of the Precursors to look forward to, and in turn my game has slowly been morphing into my own spin on the genre.
It still has what I consider the core elements of what makes a SC2-like: That is the resource collecting, space combat, exploration, and interacting with interesting aliens, though those systems have taken on more of a RPG spin to it which I hope other SC2 fans here will enjoy.
Sample shots of the game so far:
Game map:

Orbiting planet:

Aliens:


Traversing across a planet:

Planet samples:



No definite release date as yet but I've been working full steam and hope to get it done by the end of next year. The game will be available on Steam and, I will apply for distribution on GoG as well.