Here is the full list of all 43 Robocraft achievements.
Reach Protonium Rank
Earn robits via the CRF 100 times
Heal an ally at 20% health to 100% health 20 times
Get a kill with Tesla Blades within two seconds of decloaking
Get 25 kills with Tesla Blades
Win 5 battles with a full party
Use the EMP Module five times in one battle
Use the Blink Module five times in one battle
Use the Ghost Module five times in one battle
Use the Windowmaker Module five times in one battle
Reach Diamond Rank
Get 25 kills with either Ion Weapons
Play 25 games with a robot with rotors
Use your Disc Shield Module five times in one battle
Use the Weapon Energy Module five times in one battle
Play 25 games with a robot with wings or rudders
Play 25 games with a robot with hover
Reach Gold Rank
Kill 25 robots that have insect legs
Get 25 kills with the Aeroflak
Get 25 kills with the Chain weapons
Heal an ally at 20% health to full health
Play 25 games with a robot with wheels
Play 25 games with a robot with mech legs
Get 25 kills with Mortars
Play 25 games with a robot with insect legs
Play 10 games with a robot purchased from the CRF
Reach Silver Rank
Play 25 games with a robot with tracks
Get 25 kills with Rails
Kill 25 robots that have tank tracks
Kill 25 robots that have hover blades
Get 25 kills with Plasma
Kill 25 robots that have wheels
Reach Bronze Rank
Beat any campaign for the first time
Capture 20 control points
Kill 25 robots that have wings or rudders
Kill 25 robots that have rotors
Get 25 kills with Seeker
Kill 25 robots that have mech legs
Get 25 kills with Lasers
Complete the Tutorial