A little robot I designed to farm crates and XP from single player.
I focused on making this robot have an extremely high DPS-to-CPU ratio. Using four basic hovers, and minimal chassis parts, the only CPU-heavy parts are the Power Module and Ion Distorter.
The four hovers are capable of carrying the heavy central components at about 130 MPH at OC 1, up to 210 MPH at OC 15.
The robot only has two defensive features. The first, is the outer ring, only connected to the inner, functional parts in two points. The parts on the outer ring are most-frequently shot off by lucky NPCs. The main defensive components are in the center of the bot: the power module and ion distorter. By placing one on top of the other, I essentially created a 135,000 HP damage-sink. The NPCs poor aim, 10-second heal and damage-sink guarantee you will not have to restart your crate kill count.
Needless to say, this robot will not succeed in any PVP game mode. It will be annihilated.
Despite playing this game for almost 2 years, I am not very good at it. The Crate Farmer allowed me to catch my breath after the most recent Robocraft updates and gain some easy XP. This bot is capable of quickly crushing NPCs in 1-2 Ion blasts.