Here is the full list of all 41 DARK SOULS: REMASTERED achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
All achievements completed. Congratulations!
Acquire all rare weapons.
Reach "The Dark Lord" ending.
Acquire all miracles.
Acquire best weapon through occult reinforcement.
Acquire best weapon through divine reinforcement.
Acquire best weapon through magic reinforcement.
Acquire best weapon through chaos reinforcement.
Acquire best weapon through fire reinforcement.
Acquire best weapon through standard reinforcement.
Acquire all pyromancies.
Acquire best weapon through enchanted reinforcement.
Acquire best weapon through crystal reinforcement.
Acquire all sorceries.
Discover Darkwraith covenant.
Acquire best weapon through lightning reinforcement.
Reach "To Link the Fire" ending.
Defeat the Soul Lord Bed of Chaos.
Defeat Seath the Scaleless, inheritors of souls.
Defeat Dark Sun Gwyndolin, the Darkmoon God.
Discover Blade of the Darkmoon covenant.
Defeat Crossbreed Priscilla, the Lifehunter
Defeat the Soul Lord Gravelord Nito.
Discover Gravelord Servant covenant.
Defeat the Four Kings, inheritors of souls.
Acquire the Rite of Kindling.
Discover Princess's Guard covenant.
Acquire the Lordvessel.
Acquire best weapon through raw reinforcement.
Arrive in Anor Londo.
Discover Warrior of Sunlight covenant.
Acquire the Art of Abysswalking.
Discover Path of the Dragon covenant.
Discover Chaos Servant covenant.
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.