Here is the full list of all 51 Starbound - there are Unstable achievements.
Harvest 30 unique crops. Start thinking about who you'd like to romance and that barn extension.
Kill another player. Unity is overrated anyway.
Unearth 55 unique fossils. Try not to pay attention to the ones that are alarmingly humanoid.
Defeat the Ruin.
Return the Baron to the outpost.
Return Lana Blake to the outpost.
Return Tonauac to the outpost.
Return Koichi to the outpost.
Attract 10 unique tenants. Marvel at their collective peculiarity.
Recruit one crew member from every race. It's like a teeny tiny protectorate.
Return Nuru to the outpost.
Fix your ship.
Collect 210 unique pieces of armour. See how many you can wear at the same time. (Spoiler, it's 3).
Move a planet's worth of blocks. If you weren't using a Matter Manipulator you'd be ripped.
Survive the Protectorate. It could have been worse.
Obtain an entire set of armour. Now use dye to make your armour fabulous.
Meet Esther.
Find 100 unique codex items. Study them all, prepare for a pop quiz.
Find a Codex. On Earth it's rude to read other people's diaries.
Complete 50 quests for your colonists. When did this become your full time job?
Complete 25 quests for your colonists. These guys sure do ask a lot of you don't they...
Complete 10 quests for your colonists. Feel like an asset to the community!
Build a large colony. Well done Protector!
Build 5 homes in a very small space. This isn't a healthy way for anyone to live.
Attract your first colonist. Make sure you treat them right.
Kill 100 small flying monsters. They had it coming.
Recruit at least 12 crew members. Consider starting a pension plan.
Become champion of the arena. Crush your foes like an orange sorbet.
Incapacitate an innocent bystander. You monster.
Recruit your first crew member. Captain!
Recruit a penguin mercenary from the Beakeasy.
Complete the Cosmic Museum's cosmic collection.
Obtain a cool vehicle. Pop some sweet wheelies.
Restore a complete fossil. Make wild assumptions about what it used to be.
Collect at least 50 unique action figures. Insist to your friends they're actually called statuettes.
Catch 42 unique bugs. Give them all funny names.
Capture your first bug with a bug net. Esther would be proud.
Prepare at least 100 unique dishes. Bonus points if they're edible.
Capture a monster. How does it fit in that tiny ball?
Destroy a robot chicken. Don't try to eat it.
Complete Mazebound. You only need to beat it 300,000 times to win a slide whistle.
Obtain a complete alpaca costume. Use it only for good!
Augment your EPP. Now it's an AEPP.
Defeat the dastardly Dreadwing. Bring joy to penguins everywhere.
Defeat the Shockhopper MK I. Notice it rarely hops.
Defeat Mother Poptop. Every Poptop you meet from here on out is a lonely orphan.
Practice your chef skills. Try not to harm anyone.
Complete a quest! Joke's on you, there isn't any XP in this game.
Harvest a crop. See what happens when you eat it.
Collect your first musical instrument! Keep playing, even when everyone begs you to stop.
Obtain the mythical perfectly generic item.