Here is the full list of all 61 Planet TD achievements.
Kill 2000 AFE
Kill 2000 W6
Kill 1000 AFE
Kill 2000 Drone
Buy 250 Source Tower
Buy 100 Source Tower
Buy 250 Laser Tower
Buy 100 Laser Tower
Buy 250 Fire Tower
Buy 100 Fire Tower
Buy 250 Minigun Tower
First Failed Level.
Complete All Levels
Complete All Levels at Oot
Buy 100 Minigun Tower
Buy 10 Fire Tower
Buy 10 Laser Tower
Buy 10 Minigun Tower
Buy 250 Rocket Tower
Buy 100 Rocket Tower
Kill 2000 Hower
Kill 2000 Spaceship
Kill 1000 Drone
Kill 1000 Spaceship
Buy 250 Rapid Tower
Complete All levels at Paxar!
Kill 2000 Tank Zero
Kill 1000 Hower
Kill 2000 W4
Kill 250 Spaceship
Kill 250 AFE
Kill 10 AFE
Complete All levels at Artai Sui
Kill 250 Drone
Make 50.000$ Money
Buy 100 Rapid Tower
Kill 10 Spaceship
Kill 250 Hower
kill 1000 W6
Kill 1000 Tank Zero
Kill 10 hower
Buy 10 Rocket Tower
Buy 10 Source Tower
Kill 10 Drone
Kill 250 Tank Zero
Complete All levels at Udu Yer
Kill 10 Tank Zero
Kill 250 W6
Kill 10 W6
Kill 1000 W4
Victory Without Casualties!
Buy 10 Rapid Tower
Buy First Fire Tower
Kill 250 W4
Buy First Source Tower
Buy Firs Rocket Tower
Complete First Level
Kill 10 W4
Buy First Minigun Tower
Buy First Laser Tower
Buy First Rapid Tower