Here is the full list of all 46 Memories of Mars achievements worth 1,000 gamerscore.
Receive all possible FLOPs from a PvP event.
Learn all Tier 1 Building recipes.
Learn all Tier 1 Crafting recipes.
Earn 3000 Survival points.
Completely fill your Oxygen gauge using the Oxygen Pipeline (Not canisters).
Kill a Scuttler (get the killing blow).
Completely fill your Oxygen gauge using an Oxygen Canister (Inventory item, not pipeline).
Build up a structure.
Kill a Mantis (get the killing blow).
Kill a Serpentes while it is executing its jump attack.
Spend FLOPs to upgrade a building.
Complete the entire skilltree progression.
Have a piece of armor in every slot.
Customize the appearance of your suit.
Kill a Juggernaut.
Join or create an Alliance.
Kill a Serpentes (get the killing blow).
Fully upgrade a building.
Respawn at a Cloning Chamber.
Learn all Tier 2 Building recipes.
Learn all Tier 2 Crafting recipes.
Disable the searchlight of a Drone.
Craft a Pistol.
Kill a Scuttler while it is clinging to a surface.
Learn all Tier 3 Building recipes.
Learn all Tier 3 Crafting recipes.
Kill 100 Scuttlers.
Kill 100 Mantis.
Authenticate a Schematic.
Kill another player.
Kill a Mantis while it's invisible.
Craft a Submachine Gun.
Attach a module to a weapon.
Exit the Cloning Facility.
Craft a Rifle.
Craft a Sniper.
Harvest 1000 resources using mining and salvaging tools.
Collect 500 Iron Ore.
Kill 100 Serpentes.
Spend 5000 Survival points.
Craft a Shotgun.
Kill a Drone.
Die from falling damage.
Launch a Memory Capsule.
Complete the Wake-Up Call protocols.
Equip all components of the Exosuit.