Unexploited subjects.

[Flying-Emu]

I've yet to see a really good mainstream steampunk game, if that's the sort of question you mean.

Er. Bioshock? Thief 2: The Metal Age?

 

[Katana314]

Thief 2 you're probably right about, seeing as I never actually played that. (Hmm...now I'm thinking about buying it on Steam) Maybe my opinion differs from most but Bioshock didn't feel steampunk to me. Not enough airships, or expansive environments with steam hissing everywhere. The opening shot of rapture was cool, and you see a few neat contraptions they make down there, but a lot of it was genetics as far as I can remember.

 

[Aqualung]

World: Pokemon. Genre: MMO. I think many people will agree. Also a Harry Potter MMO I guess, although that could be hilarious.

Dumbledore: Kill seven wolves and bring me their hides!
Harry: Wha... What the..?

 

[Mosstromo]

Might help if you told us exactly what Talislanta, Deadlands and Lankhmar are.

Lankhmar [http://en.wikipedia.org/wiki/Talislanta] is a fantasy world created by Fritz Leiber, where the swashbuckling adventures of Fafhrd and The Grey Mouser take place.
They were random picks to show that all fantasy worlds were included in my question, but it seems I picked very obscure ones. (Except for Lankhmar which is as famous in fantasy literature as Hyboria or The Young Kingdoms).

 

[Mosstromo]

Also, a game based around road fights. Not a RACING game, but say, there's always some truck full of baby poison that you and your rebels have to take down in a high speed pursuit.

There is one: Goliath [http://www.goliathgame.com/game.html] . And it is free.

I hope that its similar to what you need, and that at least your dreams come true at the end of that link.

 

[Insanum]

Star Trek MMO. And Its being done. Squeeeee!

Resi RTs? That could be fun. Army vs Resi/L4D style Zombie Armies.

Resi? Is that Resident Evil you're saying should be a Real Time Strategy game?
Seriously?... You're joking... Right? Right...?

I just think it'd be an interesting concept & a very good game if done well.

 

[Wildrow12]

Praise be to Cthulhu. that would make both an epic RPG and an epic RTS

An RTS based on the Cthulhu mythos? Is that what you meant?

I'm not sure how that would work....but I would buy it.

Edit: Ooooh, it could run on a system similar to "Age of Mythology" (with certain 'patron' elder gods giving you certain bonuses, units, and buildings as you progress)!

First off, NO NO NO NO NO. age of mythology should stay buried. second there are 3 options. Make in an RTS, more precisely a cult management simulation with the ultimate goal to re awaken the old ones. second make in an RPG where you play a person in the universe and can help the cult awaken the old ones, try to stop the cult, just faf about etc. etc. third you could make it like spell force and include a campaign as the cult and a campaign against the cult.

Hmmm....so RPG-wise, it would be like a more open version of the "Shadow over Innsmouth" game?