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