Here is the full list of all 18 Rocket Wars achievements.
Unlock all 12 ships
Kill 500 enemies
Destroy 30 mines
Get a triple-kill with the Buzzsaw
Win a game of Nuke King by surpassing the leading player via the last Nuke explosion
Kill 150 enemies
Kill an enemy by deflecting his own Sniper shot with the Pulse
Kill an enemy by deflecting a Buzzsaw
Kill 3 enemies with a single Sniper weapon (across all 3 shots)
Win a game of Survivor without dying once
Kill a player who has the Nuke within 1 second of him getting it
Kill 2 enemies with a single Shotgun burst
Unlock your first ship
Kill 50 enemies
Kill 20 enemies by using the Pulse as a melee weapon
Play 3 matches of any mode with a full lobby of people
Detonate the Nuke without taking damage
Stay in orbit around the sun for a full 10 seconds without thrusting