Full list of all 8 Tiny Tank achievements.
The base game contains 2 achievements, and there are 3 DLC packs containing 6 achievements.
Survive on any Horde Map
Go into hiding after failing to defeat the enemy's assault on any Map/Mode
Buy Hull upgrade on any Game Mode
Buy Tiny Tims upgrade on any game mode
Kill the Marshmallow King
Kill the main Boss on survival