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