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