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