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