Full list of all 41 Dark Souls achievements worth 1,000 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox 360.
Acquire all miracles.
All achievements completed. Congratulations!
Acquire all rare weapons.
Reach "The Dark Lord" ending.
Acquire best weapon through crystal reinforcement.
Acquire best weapon through chaos reinforcement.
Acquire all pyromancies.
Discover Warrior of Sunlight covenant.
Acquire best weapon through magic reinforcement.
Acquire best weapon through occult reinforcement.
Acquire all sorceries.
Acquire best weapon through standard reinforcement.
Discover Darkwraith covenant.
Discover Forest Hunter covenant.
Reach "To Link the Fire" ending.
Acquire best weapon through fire reinforcement.
Defeat the Four Kings, inheritors of souls.
Acquire best weapon through divine reinforcement.
Acquire best weapon through enchanted reinforcement.
Defeat the Soul Lord Gravelord Nito.
Defeat Dark Sun Gwyndolin, the Darkmoon God.
Acquire best weapon through lightning reinforcement.
Defeat Seath the Scaleless, inheritors of souls.
Defeat the Soul Lord Bed of Chaos.
Discover Path of the Dragon covenant.
Acquire best weapon through raw reinforcement.
Discover Blade of the Darkmoon covenant.
Discover Gravelord Servant covenant.
Acquire the Rite of Kindling.
Acquire the Art of Abysswalking.
Discover Princess's Guard covenant.
Acquire the Lordvessel.
Defeat Crossbreed Priscilla, the Lifehunter.
Arrive in Anor Londo.
Discover Chaos Servant covenant.
Ring Bell of Awakening in Quelaag's domain.
Ring Bell of Awakening at Undead Church.
Discover Way of White covenant.
Arrive in Lordran.
Acquire Estus Flask.
Light bonfire flame.