Here is the full list of all 12 Warships 3D achievements.
Destroy ships
Win games
Win with all ships hidden (opponent has not damaged any of them)
Win with all ships alive
Win with only one ship alive
Win with only one ship alive and damaged
Play online game
Play local multiplayer game
Win game where is Boat only available, single shot weapon only and map size is 20
Destroy ship with very first shot
Destroy 2 ships in one round
Destroy 3 ships in one round