Freespace 3 - There is still a fair bit of story left in the series, would love to see another space sim but I think the universe could be very well represented by a strategy game (think mix between Sins of a Solar Empire and Conquest Frontier Wars) or even a FPS.
KOTOR 3 - MMOs are bullshit, I just want an RPG I can play through and enjoy the story without some 10 yo kid from the US running up behind me and thrusting a lightsaber through my head because he can donate 8 hours a day to level up his character.
Conquest: Frontier Wars 2 - Fantastic strategy game. Graphics weren't the best but it was fun playing, the characters were interesting and they added the right amount of mirth into the dialogue and pre-briefing stuff to also kept it interesting. An Expansion or sequel was in the works but the company went bust.
Monkey Island 5 - THe MI games were just fun, well written games. Personally I enjoyed the MI3 cartoon style over the MI4 3d look. But that won't matter much as long as it keeps in the spirit of the series.
Homeworld 3 - Great games the first two, fun and challenging, interesting story and just had a nice feel to it with the black and white cutscenes and the narrator's voice was great.
Jedi Knight 4: The New Jedi Order - Take it into the NJO era and let me take a lightsabre to those Vongs...and also maybe to a few more Imperials. I love the smell of cooking Stormtrooper in the morning!
Imperium Galactica III - Really enjoyed the first two. You get to have your space combat and your ground combat.
Birth of the Federation II - Really enjoyed it back in the day, a nice new version with pretty graphics and nice gameplay would be fun.
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