How many parts can my bot carry?

Mounts

The mounts are the sockets on the platform's Sensor & tool deck. Each one takes certain kinds of part:

• A sensor mount takes a sensor.
• A tool mount takes a tool, such as a weapon, a deployer or a grapple.
• A spare mount takes either.

A light chassis has a sensor, a tool and a spare mount. A medium chassis has two of each. A heavy chassis has four sensor, three tool and four spare mounts. The gunship also has a radio mount and a flare mount. The tunneler and bridge builder have only their built-in radio.

Hover over an empty mount to see what it takes. Some parts only fit certain chassis. For example, mortars only go on a heavy ground chassis, the deployer (DPL-1) is too big for CHS-L, and a bot can carry just one damage localizer (DMG-1). Parts that won't fit are greyed out on the shelf, and hovering over one tells you why.

Weight

• Wheeled chassis carry a limited weight of mounted parts. The light one carries the least and the heavy one the most. The hopper (HOP-M) has a limit too. The Factory won't let you go over it, and the chassis's hover panel gives the limit.
• Tracked and walking chassis have no weight limit. But top speed and acceleration come from the engine's force divided by the machine's mass, so each part makes the bot slower. A bigger engine (ENG-M or ENG-L) helps, though it weighs more itself.
• A team's total mass decides which weight class it's in for tournaments.

Each part's weight is in its hover panel. The machine's mass, top speed and acceleration are in Totals, under CPUs, engines and totals. After each change, a coloured number shows how much a total went up or down.

Cycles

There's a hidden cost too. Every part adds registers that your program reads and writes each tick. The I/O per loop total shows how many CPU cycles that takes. A bot loaded with parts spends more of each tick talking to its hardware, which leaves less time for thinking.

Swapping chassis

If you drag a different chassis onto the platform, your parts move to mounts that take them. Parts with no room go Offboard. Offboard parts aren't saved with the design. Drag one onto a mounted part to swap them, or click ✕ to put it back on the shelf.