The Elder Scrolls IV: Oblivion
You need to complete each achievement to get the allotted gamerscore.
Journeyman, Mages Guild (10) Reached Journeyman rank in the Mages Guild.
Evoker, Mages Guild (10) Reached Evoker rank in the Mages Guild.
Warlock, Mages Guild (10) Reached Warlock rank in the Mages Guild.
Conjurer, Mages Guild (10) Reached Conjurer rank in the Mages Guild.
Magician, Mages Guild (10) Reached Magician rank in the Mages Guild.
Master-Wizard, Mages Guild (10) Reached Master-Wizard rank in the Mages Guild.
Wizard, Mages Guild (10) Reached Wizard rank in the Mages Guild.
Arch-Mage, Mages Guild (50) Completed the Mages Guild Questline.
Protector, Fighters Guild (10) Reached Protector rank in the Fighters Guild.
Defender, Fighters Guild (10) Reached Defender rank in the Fighters Guild.
Journeyman, Fighters Guild (10) Reached Journeyman rank in the Fighters Guild.
Swordsman, Fighters Guild (10) Reached Swordsman rank in the Fighters Guild.
Warder, Fighters Guild (10) Reached Warder rank in the Fighters Guild.
Guardian, Fighters Guild (10) Reached Guardian rank in the Fighters Guild.
Apprentice, Fighters Guild (10) Reached Apprentice rank in the Fighters Guild.
Champion, Fighters Guild (10) Reached Champion rank in the Fighters Guild.
Master, Fighters Guild (50) Completed the Fighters Guild Questline.
Associate, Fighters Guild (10) Joined the Fighters Guild.
Eliminator, Dark Brotherhood (10) Reached Eliminator rank in the Dark Brotherhood.
Apprentice, Mages Guild (10) Reached Apprentice rank in the Mages Guild.
Slayer, Dark Brotherhood (10) Reached Slayer rank in the Dark Brotherhood.
Assassin, Dark Brotherhood (10) Reached Assassin rank in the Dark Brotherhood.
Listener, Dark Brotherhood (50) Completed the Dark Brotherhood Questline.
Associate, Mages Guild (10) Joined the Mages Guild.
Silencer, Dark Brotherhood (10) Reached Silencer rank in the Dark Brotherhood.
Speaker, Dark Brotherhood (10) Reached Speaker rank in the Dark Brotherhood.