Here is the full list of all 34 Nimbatus - there are The Space Drone Constructor achievements.
Own over 5000 Tritium in any mode
Own over 1000 Unobtainium in any mode
Complete a mission without using thrusters
Drop 5 Bio barrels at the same time into the Nimbatus container
Freeze a bee and drop it off at the Nimbatus container
Reach Galaxy #10 in any mode
Kill the snake boss in the ancient jungle ruin
Find a planet filled with resources
Destroy a Corp laboratory without disabling it's shield
Completely destroy a planet
Print a factory part with a factory part
Initiate the self destruction sequence of your drone core
Reach an angular velocity of 2000°/s with your drone
Have over 100 logic parts in a drone
Construct a drone with over 250 parts
Construct a drone with over 500 parts
Construct a drone with over 100 parts
Upload a drone to the Steam Workshop
Construct your first drone
Win 10 matches in a row in the sumo tournament
Win 10 matches in a row in the brawl tournament
Win a versus race tournament
Win a catch tournament
Lose your first drone in the survival mode
Complete the survival mode on normal difficulty or higher
Complete the survival mode with the Heavyweight captain
Complete the survival mode with the Pilot captain
Complete the survival mode with the Miner captain
Complete the survival mode with the Engineer captain
Complete the survival mode with the Researcher captain
Complete the survival mode with the Programmer captain
Reach a velocity of 450m/s with your drone
Complete all tutorials
Kill 10 bees by ramming into them