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.
Acquire all miracles.
Discover Warrior of Sunlight covenant.
Acquire best weapon through magic reinforcement.
Acquire best weapon through fire reinforcement.
Acquire best weapon through occult reinforcement.
Acquire best weapon through crystal reinforcement.
Reach "To Link the Fire" ending.
Acquire best weapon through divine reinforcement.
Acquire best weapon through chaos reinforcement.
Acquire all sorceries.
Acquire best weapon through enchanted reinforcement.
Acquire all pyromancies.
Acquire best weapon through raw reinforcement.
Acquire best weapon through lightning reinforcement.
Discover Darkwraith covenant.
Defeat Dark Sun Gwyndolin, the Darkmoon God.
Reach "The Dark Lord" ending.
Defeat the Soul Lord Bed of Chaos.
Defeat Seath the Scaleless, inheritors of souls.
Defeat the Soul Lord Gravelord Nito.
Defeat the Four Kings, inheritors of souls.
Acquire best weapon through standard reinforcement.
Discover Path of the Dragon covenant.
Discover Chaos Servant covenant.
Discover Princess's Guard covenant.
Acquire the Lordvessel.
Acquire the Rite of Kindling.
Discover Blade of the Darkmoon covenant.
Discover Gravelord Servant covenant.
Defeat Crossbreed Priscilla, the Lifehunter.
Arrive in Anor Londo.
Acquire the Art of Abysswalking.
Ring Bell of Awakening in Quelaag's domain.
Discover Forest Hunter covenant.
Ring Bell of Awakening at Undead Church.
Discover Way of White covenant.
Arrive in Lordran.
Acquire Estus Flask.
Light bonfire flame.