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