Full list of all 45 Lightyear Frontier achievements worth 1,750 gamerscore. It takes around 10-12 hours to unlock all of the achievements in the base game.
The base game contains 26 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 19 achievements worth 750 Gamerscore.
Plant 100 seeds.
Plant your first seed.
Plant 500 seeds.
Plant 1000 seeds.
Build the Radio Tower.
Remove 10 Noxious Slimes.
Remove 50 Noxious Slimes.
Remove 150 Noxious Slimes.
Remove 100 Noxious Weeds.
Remove 300 Noxious Weeds.
Remove 700 Noxious Weeds.
Increase Homestead Coziness to 1.
Increase Homestead Coziness to 2.
Increase Homestead Coziness to 3.
Explore a ruin.
Explore 7 ruins.
Explore the vault in Outset Grasslands.
Feed an animal for the first time.
Feed 20 animals.
Feed 50 animals.
Restore a region.
Scare away 10 animals.
Spray water at another player.
Get an upgrade at the Upgrade Depot.
Get 10 upgrades at the Upgrade Depot.
Restore all regions in Outset Grasslands.
Help Ulf move in.
Have 5 daily chats with Ulf.
Help Diane move in.
Have 5 daily chats with Diane.
Collect a Spliced Seed.
Collect a Mutated Crop.
Collect 20 Abandoned Eggs.
Pick up a Farm Animal.
Hatch 5 Farm Animals.
Have 10 happy Farm Animals at once.
Have a Farm Animal for 30 days.
Have 5 rare Farm Animals at once.
Put an Accessory on a Farm Animal.
Create paths in Pathmaker Mode.
Plow 500 Mounds in Field Plow Mode.
Trip and land on your feet 5 times.
Plant 200 Sprouts.
Discover 20 Paints.
Plow 1000 Mounds in Field Plow Mode.