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.
Complete Dark Matter Mode.
Battle for an enemy asteroid for ten minutes.
Gather 4000 seedlings on an asteroid.
Gather five mines on an asteroid.
Gather ten flowers on an asteroid.
Complete the main game.
Complete "The Centre Cannot Hold" within 60 minutes.
Complete the campaign in under ten hours.
Attack an enemy asteroid and lose 300 seedlings in the process.
Defend one of your own asteroids continuously for five minutes.
Complete "200" without any of your own trees being destroyed.
Destroy ten enemy seedlings using a mine explosion.
Find over 700 of the lost seedlings in the game.
Complete "Protection" without destroying anyone else's trees.
Send a flower or a mine over 50000 arbitrary distance units.
Discover an asteroid using a flower or a mine.
Attack an enemy asteroid and destroy 200 seedlings in the process.