Here is the full list of all 40 ICARUS achievements.
Kill the Landshark Boss on the Hardest Difficulty
Cook every item of Food
Kill the Sandworm Boss on the Hardest Difficulty
Kill the Alpha Wolf Boss on the Hardest Difficulty
Kill the Scorpion Boss on the Hardest Difficulty
Get 10,000 Gun Kills
Get 10,000 Melee Kills
Get struck by lighting… again
Get 1000 Stealth Critical hit kills
Kill 250 Zebra
Get 10,000 Bow & Arrow Kills
Unlock all blueprints in T4
Unlock all blueprints in T3
Unlock all blueprints in T2
Unlock all blueprints in T1
Reach the Level Cap
Get struck by lightning
Activate the Thumper
Alter an item
Kill a Deer with a grenade
Break a crate with a grenade
Mine every type of ore
Harvest one of every plant
Burn down a shelter
Reach the bottom of a talent tree
Equip a full set of armor
Kill another prospector
First time killed by a bear
Catch a fish with a bow and arrow
Pick up a stick, stone, or oxite
Revive a downed prospector
First time your prospector dies
Complete the tutorial
Complete every Styx Mission
Complete every Olympus Mission
Collect 10000 Credits
Collect 10000 Exotics
Catch one of every fish
Unlock all the creatures in the Bestiary (Max Rank)
Explore every biome