Ancient world instrumentation that actually sounds researched, not just "generic epic fantasy" stuff. Titan Quest's score follows you from Greece through Egypt to China and the regional shifts are genuinely convincing. Athens has this warm Mediterranean string work with woodwinds that immediately ground you in the setting.
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Then Sandswept Roads transitions into Egyptian-influenced percussion and modal scales, and by the time you reach The Silk Road the whole tonal palette has changed to Eastern instruments and pentatonic melodies. Knossos Labyrinth nails that creeping dread.
Battling the Titan goes full bombastic when it needs to but earns it because the rest of the score shows restraint. If you've been grinding ARPG loot for years, give this backdrop the attention it deserves.