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