Here is the full list of all 18 Eufloria achievements.
Complete Dark Matter Mode.
Complete the main game.
Complete the campaign in under ten hours.
Defend one of your own asteroids continuously for five minutes.
Complete "200" without any of your own trees being destroyed.
Discover an asteroid using a flower or a mine.
Attack an enemy asteroid and destroy 200 seedlings in the process.
Gather ten flowers on an asteroid.
Gather five mines on an asteroid.
Destroy ten enemy seedlings using a mine explosion.
Send a flower or a mine over 50000 arbitrary distance units.
Attack an enemy asteroid and lose 300 seedlings in the process.
Gather 4000 seedlings on an asteroid.
Complete "The Centre Cannot Hold" within 60 minutes.
Complete "Protection" without destroying anyone else's trees.
Find over 700 of the lost seedlings in the game.
Battle for an enemy asteroid for ten minutes.
A pitched battle that lasts over 15 minutes and incurs 500 losses between all sides.