Here is the full list of all 42 The Solus Project achievements worth 1,000 gamerscore.
Blow up a torch in H2S without getting killed
Drink champagne 3 times
Fall for at least 5 seconds to your death
Find Milson
Phone home
Show some love to rocks - smash 20 rocks together
Have 16 rocks in inventory
Return to the Crossroad Island with an energy source
Find the energy source
Only eat alien 10 times in a row
Jump into the Hotspot crater
Collect 50 secrets
Reach the island of Hotspot
Enter the massive ice cavern
Enter the Ice Path
Complete Highpoint
Reach the island of Highpoint
Complete the library
Complete Flashpoint
Open 50 boxes
Teleport 10 times in 30 seconds
Reach the island of Flashpoint
Dip your head in acid water
Have seen the dolls that cannot be unseen
Overcome the dark encounter
Start the Communication Tower
Find and pick up the music player
Swim far off shore
Get hit by a spike plant
Find the ladder down
Extinguish a torch in water
Explore the backside of the first island
Survive a tornado
Collect your first secret
Complete your survival training
Hasn't picked up PDA until 5 minutes has passed
Set foot on the planet
Collect all secrets
Return to the first caves after Flashpoint
Collect 75 secrets
Carry 10 pieces of Tower Pieces in your inventory
Get hit by lightning while holding a hammer