I have absolutely no idea what game it could be. :-)

[edit: just to make it clear, this was a huge sarcasm. i didn't answer because i can't afford to start new drawing-wait-tor-answer cycles for now]

Pirates gold?

correct :)

A new one. Loved the game.

Astrotit?

lol. Not that one.

Well.. and this is a long shot.. Star Control II?

I was not a long shot. It is correct. Clearly it is Ur-quan and Druuge fighting.

Alright another one.

...is it Star Control 2? :P

No, it's not a very clever use of reverse psychology.
It's just a terrible drawing.

it looks a bit like sleeping dogs.

Correct!
Which just happens to be on my Non-GOG wishlist, just like Just Cause 2. Such a coincidence!
Alright I promise this is the last time I do that to this thread. ;)

Yarg. Okay, just a quick one. No colors.