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