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