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