Stress Test

The Stress Test was a partial release of Diablo II in 2000 given out for free to test how the game ran on Battle.net servers. It was divided into two phases:
 * Alpha Test: all 5 classes could be played, all of Act I was open.
 * Beta Test: Players could only play the class. Could only go as far as Blood Raven.

In both cases the skill trees only went up to level 18.