R3-D10 (or Arthree Deeten) was a R3-D-series astromech droid. The droid was originally made to serve in the Republic Navy as a starfighter astromech. He served in the Clone Wars as the personal droid assistant of Jedi Knight Shahmzar Aonda-Alci. General Aonda-Alci and R3 often flew heavy starfighters and bombers, such as the ARC-170, NTB-630, and BTL-B. During Order 66, D10 chose to remain loyal to the Jedi instead of the Republic, and helped Shahmzar escape in their ARC-170 starfighter.