Here is the full list of all 34 LUNARK achievements.
Congratulations! You finished the game!
You petted all the doggos!
The Zirneklis Queen is now definitely dead.
You solved the puzzle and got a map.
You destroyed the Swordroid gang.
Nothing’s more relaxing than a gentle purr.
You found and helped Smockey!
You upgraded your weapon!
You've literally hit a wall.
You recovered a strange artifact.
You defeated the Zirneklis Queen (basically a giant spider).
Fall from two levels above without grabbing anything and you won't be getting up.
No droids were harmed during this tutorial.
You found secret location #1!
You found secret location #2!
You found secret location #3!
Bring Hugg 3 $hells and you’ll get a heart!
You found secret location #4!
You found secret location #5!
You found secret location #6!
You found secret location #7!
You found secret location #8!
You found secret location #9!
You found secret location #10!
You found secret location #11!
None of the guards spotted you.
You brought hope to a nice couple.
The king of basketball! All you need now is… a ball.
That was a hard place to reach.
You've read all of the villain's diaries.
It took some time, but in the end you're a great dancer!
You maxed out your number of hearts.
You maxed out your gun specifications.
Impressive! You accomplished everything in LUNARK!