Full list of all 45 Diablo III achievements worth 1,000 gamerscore. It takes around 60-80 hours to unlock all of the achievements on Xbox 360.
Reach level 30 in Hardcore mode.
Complete all the main character, follower, and artisan conversation challenges.
Complete all the Diablo triumph challenges.
Complete all the Butcher triumph challenges.
Kill Diablo in Inferno mode.
Kill Azmodan in Inferno mode.
Kill Belial in Inferno mode.
Complete all the Belial triumph challenges.
Equip all Inventory slots with items that have a minimum required level of 60 or higher.
Buy each type of item from merchants.
Kill Maghda in Inferno mode.
Kill the Butcher in Inferno mode.
Raise the Jeweler to level 10.
Kill 100 Treasure Goblins.
Kill the Skeleton King in Inferno mode.
Reach level 60.
Kill Diablo in Hell mode.
Buy all stash upgrades.
Complete all the Azmodan triumph challenges.
Raise the Blacksmith to level 10.
Pick up 500,000 gold.
Kill Diablo in Nightmare mode.
Equip all Inventory slots with items that have a minimum required level of 25 or higher.
Kill 500 elite (champion, rare, or unique) enemies.
Reach level 30.
Complete all quests in Act IV.
Kill Diablo in Normal mode.
Complete all quests in Act III.
Kill Azmodan in Normal mode.
Kill one of the unique enemies listed in the Never Seen That Before Challenge.
Fully equip one of your followers.
Recruit the Templar, Scoundrel, and Enchantress.
Craft 5 items.
Combine gems.
Complete all quests in Act II.
Kill Belial in Normal mode.
Equip a legendary (orange) item.
Kill Maghda in Normal mode.
Complete all quests in Act I.
Kill the Butcher in Normal mode.
Use a merchant to repair an item.
Reach level 10.
Equip a rare (yellow) item.
Kill the Skeleton King in Normal mode.
Pick up 5,000,000 gold.