Here is the full list of Dark Souls Achievements which you will be collecting along your gameplay, there are 41 achievements equaling 1000 points that will need to be collected. Here at GF we have video guides for you to see how to get them, specially those tough ones.
Dark Souls Achievements List
The Dark Soul 50
All achievements completed. Congratulations!
Knight's Honor 25
Acquire all rare weapons.
Wisdom of a Sage 25
Acquire all sorceries.
Bond of a Pyromancer 25
Acquire all pyromancies.
Prayer of a Maiden 25
Acquire all miracles.
Covenant: Way of White 15
Discover Way of White covenant.
Covenant: Gravelord Servant 25
Discover Gravelord Servant covenant.
Covenant: Chaos Servant 25
Discover Chaos Servant covenant.
Strongest Weapon 15
Acquire best weapon through standard reinforcement.
Crystal Weapon 15
Acquire best weapon through crystal reinforcement.
Lightning Weapon 15
Acquire best weapon through lightning reinforcement.
Raw Weapon 15
Acquire best weapon through raw reinforcement.
Magic Weapon 15
Acquire best weapon through magic reinforcement.
Enchanted Weapon 15
Acquire best weapon through enchanted reinforcement.
Divine Weapon 15
Acquire best weapon through divine reinforcement.
Fire Weapon 15
Acquire best weapon through fire reinforcement.
Chaos Weapon 15
Acquire best weapon through chaos reinforcement.
Enkindle 15
Light bonfire flame.
Estus Flask 15
Acquire Estus Flask.
Reach Lordran 15
Arrive in Lordran.
Ring the Bell (Undead Church) 15
Ring Bell of Awakening at Undead Church.
Ring the Bell (Quelaag's Domain) 15
Ring Bell of Awakening in Quelaag's domain.
Rite of Kindling 15
Acquire the Rite of Kindling.
Art of Abysswalking 15
Acquire the Art of Abysswalking.
Reach Anor Londo 25
Arrive in Anor Londo.
Lordvessel 25
Acquire the Lordvessel.