Before March 2014, AG characters had the opportunity to play one of the following startup scenarios in the beginning of the game. This was your only chance to try one of the scenarios; once you entered the village of Hawklor, this opportunity disappeared.
Players were adviced not to pass on these mini-quests. They were, each and every one, unique and rewarding. Even if the gaming path was clear (maybe with our suggestion), exploring their stories with a secondary character was still recommended. These quests preserved the condensate spirit of the game in the early days, and were wonderful readings, of the best of the GM's prose.
There was a general consensus that the most rewarding scenario was The Wandering Undead because of the free power of Necromancy that could be gained. All the other items and equipment effects can be replicated and bested by later equipment, but gaining powers is expensive, regardless of the method.
Originally, they were intended to be accessible only to Adventurers Guild members. They were, however, made available to all players for a couple of years (at least, from 2007 to mid 2010).
In some moment around May 2010, they were disabled for all new accounts, although character on older accounts still had access to them. They were reinstated (although just for AG members), at some moment before August 2010.
Originally, all power checks in these scenarios had no level requirements (logical, since you can't have more than level 1 in any power at startup with a randomly-created character). In January 11, 2012 it was reported that the power checks had started to become 20+, which makes them impossible to use unless you're using a Pre-Generated. It is unknown when did this change happen.