For me, in no particular order:

- Age of Empires II (http://www.youtube.com/watch?v=tri_N8MpY0I)
- Age of Mythology (http://www.youtube.com/watch?v=uMkwUeWqma0)
- The Original Halo Trilogy (especially Halo:CE)
- The Unreal games (including Unreal Tournament etc.)
- Heroes of Might and Magic II and III
- Dungeon Siege (http://www.youtube.com/watch?v=1ysisxLSfsg)



My composing friend really likes the music from Journey and Vessel. Have you ever heard those? They are pretty good, but I've never played the actual games for myself.

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What most people don't understand is what I like to explain as a thing that I understand.

- Assassins Creed 2 - Venice Rooftops http://www.youtube.com/watch?v=5EaRHlo4B0Y
- Original Halo themehttp://www.youtube.com/watch?v=Z5yVOFokLVY
- Elder Scrolls V Skyrim Theme
- Final Fantasy VII - One Winged Angel
- Pangya, most of them
- Battlefield Theme http://www.youtube.com/watch?v=ZO9fnzfAsVU
- Pretty much all music in Age of Empires II
- Soldat soundtracks, all of them http://www.youtube.com/watch?v=9YJL6OcX1ms
- C&C Red Alert soundtrack, most of them http://www.youtube.com/watch?v=9WqwFhX6Cqg
- Ragnarok Online, most of them

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Did you ever wonder, how time works?

Yes for the original Halo theme, Battlefield theme and Age of Empires II !

C&C, and AC2 are good too. I'm also very familiar with the FFVII One Winged Angel song. Skyrim's theme is decent. I don't even know what Soldat is, though. *now listening*

Here's a kickass track from Halo:CE which I don't think very many people are familiar with:
http://www.youtube.com/watch?v=x7YKELphgZA

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What most people don't understand is what I like to explain as a thing that I understand.

I love pretty much anything by Alexander -siren- Brandon. He was involved in the Unreal, UT and Deus Ex soundtracks, which are in my opinion still the best soundtracks in every game ever made.
Also Yasinori Mitsudas work in Chronotrigger, ChronoCross and Xenogears is phenomenal.
The original Diablo soundtrack is rather wicked aswell

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wzl's burrow

Oh god, yes! I played the s*** out of Halo:CE, I totally forgot about most of soundtracks thought :d thank you

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Did you ever wonder, how time works?

The tracks from Diablo 2, especially Act 1, still give me goosebumps. Mmmmmm soo gooood. http://www.youtube.com/watch?v=EdFAXVQMHQE

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Whatever the mind can conceive and believe, it can achieve

I've never heard any music from Diablo II... I'm liking it!

http://www.youtube.com/watch?v=XheJnmLAwhk

Also, good choices, weezl!

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Full Diablo II Soundtrack:
http://www.youtube.com/watch?v=AHj56_F3v-0

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What most people don't understand is what I like to explain as a thing that I understand.

Unreal Tournament had some great tracker tunes from the demoscene. I'd heard many of them before, but it was a nice surprise when they popped up in the game.

The original Carmageddon sound track was pretty good. Fear Factory, streamed straight off the CD. The game disc even played in a regular CD player.

Hell March from C&C:Red Alert is my all time favourite though.

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10 PRINT "Bad Monkey ";
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Quake Soundtracks!
http://www.youtube.com/watch?v=8beftl3VMZY

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What most people don't understand is what I like to explain as a thing that I understand.

The nostalgia... it's so strong!

Also enjoyed the music in The Guild 1.

Cave Story has good music in-game but I don't really enjoying listening to the soundtrack, feels like the tracks don't fit together well. The theme song is awesome http://www.youtube.com/watch?v=AlYHQDsA13U

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Whatever the mind can conceive and believe, it can achieve

Cave Story. Awe... memories

Super Mario RPG had some cool music too (ever played that?).
I don't know what "The Guild" is. :/

Heroes of Might and Magic II: http://www.youtube.com/watch?v=VRcprUCjwDc

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What most people don't understand is what I like to explain as a thing that I understand.

http://www.gog.com/gamecard/the_guild_gold_edition $9 is maybe a bit steep for such an old game, but if you dig sim style games it may be worth it.

The Guild seems to be a pretty unknown game. It's sim/rpg game where you play a dude in the 1400's, building up your dynasty and your business, competing against the other dynasties. It was pretty deep in the various ways you could approach the challenges - a wide variety of professions to choose from and interesting ways to level up and leverage your stat points. For instance, you had a stat called Rhetoric, which was your ability to articulate. You could use this to lampoon your enemies, gain political power and also have an easier time getting married. Your guy also eventually dies and control passes to one of your children, so if you have the money you can train your kids up while you're alive so that you get a head start when you pop off

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Whatever the mind can conceive and believe, it can achieve

It looks like fun.

World of Goo!

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What most people don't understand is what I like to explain as a thing that I understand.

FF7 - https://www.youtube.com/watch?v=bMtlLpYcCAQ
Tropico 4 - https://www.youtube.com/watch?v=z9i3xyA ... A9708472B5

Oh yes! Tropico! I only played one of the older games but the music really fit the atmosphere of the game. Good stuff!

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Whatever the mind can conceive and believe, it can achieve

The Unreal Gold soundtrack.

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What most people don't understand is what I like to explain as a thing that I understand.

This is a pretty good listen aswell!

http://www.youtube.com/playlist?list=PLCE0B024FBB06A192

edit:
Thanks for linking the unreal gold soundtrack, there's some i didn't hear before. Very appreciated \o/

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Long pork is people!

wzl's burrow

Nice RPG Battle themes, weezl! I like it!

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What most people don't understand is what I like to explain as a thing that I understand.