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.
All achievements completed. Congratulations!
Reach "To Link the Fire" ending.
Acquire all miracles.
Acquire all rare weapons.
Acquire best weapon through divine reinforcement.
Acquire best weapon through enchanted reinforcement.
Reach "The Dark Lord" ending.
Acquire all sorceries.
Acquire all pyromancies.
Acquire best weapon through chaos reinforcement.
Acquire best weapon through fire reinforcement.
Defeat the Soul Lord Bed of Chaos.
Acquire best weapon through standard reinforcement.
Acquire best weapon through occult reinforcement.
Defeat the Soul Lord Gravelord Nito.
Acquire best weapon through raw reinforcement.
Acquire best weapon through crystal reinforcement.
Acquire best weapon through magic reinforcement.
Defeat Seath the Scaleless, inheritors of souls.
Discover Darkwraith covenant.
Defeat the Four Kings, inheritors of souls.
Acquire best weapon through lightning reinforcement.
Discover Warrior of Sunlight covenant.
Defeat Dark Sun Gwyndolin, the Darkmoon God.
Discover Blade of the Darkmoon covenant.
Discover Princess's Guard covenant.
Acquire the Lordvessel.
Defeat Crossbreed Priscilla, the Lifehunter.
Acquire the Rite of Kindling.
Discover Gravelord Servant covenant.
Discover Path of the Dragon covenant.
Acquire the Art of Abysswalking.
Discover Forest Hunter covenant.
Discover Chaos Servant covenant.
Arrive in Anor Londo.
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.