Here is the full list of all 18 ICY: Frostbite Edition achievements.
You visited the Wind Tower
You visited the Ammo-nation
You killed Bertrand and saved Eva
You helped Boris to claim the Eden
You visited the legendary Eden
You recruited all companions
You visited the Garden
You decided to sabotage the Eden
You helped Janeve with her quest
You visited the Junkyard
You helped Vernon to purge the rebels
You completed the Keeper's quest
You managed to convince Morgan to join the Eden's rebels
You visited the White People's Temple
You completed the Killer Tree quest
You helped Morgan to claim the Eden
You joined the White People
You dealt with the Wolf Pack