Complex sentence: Erik Range first gained fame in the gaming industry as a guide for Bard characters of the online role playing game Meridian 59, where he first appeared under the pseudonym "Gronkh", the alias he still uses today.
Split into simpler sentences: Erik Range first gained fame in the gaming industry as a guide for Bard characters of the online role playing game Meridian 59. This is where he first appeared under the pseudonym "Gronkh"--the alias he still uses today.