Here is the full list of all 20 Eufloria HD achievements.
A pitched battle that lasts over 15 minutes and incurs 500 losses between all sides.
Find over 700 of the lost seedlings in the game.
Complete Dark Matter Mode.
Attack an enemy asteroid and destroy 200 seedlings in the process.
Battle for an enemy asteroid for ten minutes.
Complete Story Mode in under ten hours.
Complete "The Centre Cannot Hold" within 60 minutes.
Send a flower or a mine over 50000 arbitrary distance units.
Gather ten flowers on an asteroid.
Terraform an asteroid to maximum resources.
Record all of the Ancient Artifacts.
Complete the main game.
Complete "200" without any of your own trees being destroyed.
Complete "Protection" without destroying anyone else's trees.
Defend one of your own asteroids continuously for five minutes.
Gather five mines on an asteroid.
Destroy ten enemy seedlings using a mine explosion.
Discover an asteroid using a flower or a mine.
Attack an enemy asteroid and lose 300 seedlings in the process.
Land a beacon seed on an enemy asteroid.