Feel free to share anything about Master of Orion II: Battle at Antares (1996) here!

I loved this game! It was just great and I have to admit that I liked it more than Part 1!

I was really happy as I saw MoO3 in a store and I bought it immediately... A huge mistage In my opinion MoO3 wasn't more than a piece of "something"...

Back to MoO2. If I remember correctly the game run under DOS and Windows95 - but as it crashed very often under the windows gui(at least on my PC) I mostly played the DOS version of it. I think there were no grafical or other differences between those versions.

My favourite race were the "Psilon" - getting fast new technologie rocked

Correct, the game comes in a combined MS-DOS/Windows version, and yes, the one for Windows is quite unstable. No graphical or gameplay differences, though.

As for races, I'm always designing my own, with subterran and unification being the central settings. The former increases population significantly (and more population means more everything), the latter increases production so that without it, I don't even really see how some planets should ever be colonized.