Here is the full list of all 50 PLANETS OF WAR achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Start The Game
Check the options
Start Level 1
Start Level 2
Start Level 3
Start Level 4
Kill The End Boss
Finish The Game
Kill a Enemy
Make 5 Hits
Make 50 Hits
Make 100 Hits
Make 200 Hits
Make 250 Hits
Make 500 Hits
Make 1000 Hits
Make 2000 Hits
Destroy The First Mothership
Destroy The second Mothership
Destroy an asteroid
Change The Firemode
Destroy The Enemys Spacestation
Destroy The Alien Planet
See The Credits
Check The Pause Menu