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