From Diablo Wiki
- From the Quest Selection screen take quest 4. Reign of the Black King > The Royal Crypts.
- Take the Waypoint from Tristram to the Cemetery of the Forsaken.
- Locate the single level Defiled Crypts and hunt for the Dataminer/Digger O'Dell.
- If unsuccessful, leave the game and hit 'Resume' to start just inside the gates of the cemetery again.
- If you come across the events Jar of Souls or The Matriarch's Bones you are in a single level crypt.
- If you find the 2 level crypt just take a Town Portal back to Tristram and take the Waypoint back to the Cemetery of the Forsaken. Back in the cemetery you know the other two dungeons are both single level meaning either could have the Dataminer in. You need patience however.
- If you are doing this multiple times you may run into Lucious the Depraved (also needed for this achievement) in the cemetery so don't bother hunting for him first. You may be lucky and be able to kill two birds with one stone.
- Smash the jars of Ashes as there is another Achievement called Jars of Destruction which calls for you to smash 1,000.