Here is the full list of all 38 Orange Moon achievements.
Upgrade all equipment
Complete level 6
Lure forgotten astronaut to a jammer and kill it.
Fuel the hovercraft and reach the other side of toxic fog.
Reach Etanega mines
Complete level 5
Deal with the Recycler
Unlock Hand Cannon
Find laboratory
Complete level 4
Destroy 100 small orbs
Complete level 3
Kill a loader
Unlock Shotgun
Buy upgrade canister
Have 10 upgrade canisters in your inventory
Destroy 25 turrets with grenades
Discover excavation site
Accumulate 3000 alien matter
Complete level 2
Solve three obelisks puzzle
Find first deposit and deploy beacon
Destroy turret with grenade
Complete first level
Upgrade your equipment first time
Complete level 7
Complete level 8
Complete level 9
Kill Abomination
Talk to raider
Upgrade all weapons
Upgrade all weapons and equipment
Find Plasma rifle on the Moon
Unlock Minigun
Board Punisher M1
Destroy Punisher M3
Finish the game without upgrading any of your equipment
Finish the game