Full list of all 60 Remnant II achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 50 achievements, and there are 2 DLC packs containing 10 achievements.
Craft 15 Weapon Mods
Defeat a Boss in Single-Player Without Taking Any Damage
Defeat 25 Aberrations
Acquire 30 Guns
Acquire 100,000 Scrap
Acquire 20 Melee Weapons
Acquire 20 traits
Defeat 100 Special Enemies
Defeat 10 Aberrations
Acquire the Max Number of Trait Points
Defeat the Nightweaver
Obtain an Item From the Nightweaver's Web
Acquire 50,000 Scrap
Listen to All of Mudtooth's Stories
Acquire 10 Relics
Acquire 10 Melee Weapons
Acquire 15 Guns
Upgrade a Boss Weapon to +10
Meet Nimue
Upgrade a Standard Weapon to +20
Obtain 10 Traits
Defeat Guardian of N'Erud
Defeat Many Faces
Upgrade a Weapon Mutator to +10
Defeat the Final Boss
Defeat the Fae Imposter
Upgrade Relic Capacity
Defeat Tal'Ratha
Meet the Custodian
Upgrade a Standard Weapon to +10
Upgrade a Boss Weapon to +5
Play a Secret Song on the Water Harp
Reach Level 10 on Any Archetype
Craft a Boss Weapon
Acquire a World Boss's Alternate Reward
Discover a Blood Moon Room
Obtain a Secret Archetype
Craft an Item at the Blood Moon Altar
Upgrade Any Trait to 10
Slot a Second Archetype
Defeat the Labyrinth Boss
Defeat the Ravager
Defeat a World Boss
Receive an Alignment Reading from Meidra
Obtain a Non-Starter Trait
Meet the Flautist
Craft a Non-Starter Weapon Mod
Choose Your First Archetype
Defeat the Root Mantis
Discover Leto's Stash