[iwanPlays]

I'm so thankful for this thread! I'm working on a YouTube playlist of my favorite exclusive content demos.

Jagged Alliance 2 has the "Demoville" map (with three levels, one of which is hidden) that is unique. The non-battle area of the ground level is slightly similar to I06 Estoni. The demo also has some exclusive voice acting.



https://archive.org/details/JaggedAlliance2_1020

Correction: StarCraft the demo has 4 levels + 1 tutorial level, not 5 levels + 1 tutorial level:


Fallout 3 Van Buren has a demo. It was never made (or at least never released). Not sure this counts.