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