Here is the full list of all 17 Road Defense: Outsiders achievements.
Protect the village 05
Protect the village 04
Protect the village 03
Protect the village 02
Reach Level 15.
Buy the Fusion Bomb.
Protect the village 00
Protect the village 01
Defeat a total of 1.000 enemies.
Reach Level 10.
Buy the laser beam.
Defeat a total of 100 enemies.
Reach Level 5.
Defeat a total of 10 enemies.
Defeat a total of 10.000 enemies.
Defeat a total of 20.000 enemies.
Protect the village 06