Finish Temple of Trials

Your very first quest in every new game of Fallout 2 is this one. Since you don't have a Pip Boy at this stage of the game, no log is made of this quest, but the only way forward is through the Temple of Trials. The quest, and the temple, are located in Arroyo.

Reward:
 * 600 EXP
 * Vault Dweller suit and the Pip Boy

The quest itself can be seen as a training quest, as it forces the player to use a wide variety of skills to pass, concluding with either fighting, sneaking, or talking your way past Cameron.