In short - it's a web application which allows you to plan your bot builds.
All parts, all tunes, all cartridges.
Calculates weapon damage based on TEC/STR.
Text import/export of bots.
Core version 3.4, database - I don't care. Everything should be there, and if something if not, please contribute.

Requirements: any modern browser for online version, anything but chrome and IE for offline version.
Oh, and the link: http://external.koi-sama.net
The mirror http://koi-sama.net/cb/ will stay alive, but it's slow.
FAQ:
Q: How do I install it?
A: You don't. Click on the link above. Cosmicalc will load in your browser. If you want to use it in offline, get the offline version and load index.html from the archive.
Q: It won't load.
A: Get the offline version. I will move CC to a proper hosting if someone's willing to pay for it.
Q: I don't understand how to use it.
A: http://i.imgur.com/R1WhC.png
Q: There's an error in %somepart%
A: Post the error in this thread. Like this: "There's an error in %somepart%. %somestat% should be 2 instead of 1"
Q: When would you add %something% in cosmicalc?
A: Wait a couple of days after this %something% is released in CBEN. If it's a robot, you better send me the data I need to add it.
Example:
Elisalotte: http://i.imgur.com/pmQ5I.png
Core cart effect: she starts with 1 ammo ( her int card only adds 1 ammo each upgrade thus 3 total)
Additional info: sword is str-based and could be tuned with all subweapon tunes
Q: Why %something% is not added?
A: Because I either don't have the data (see above) or it's not released in CBEN.
Q: How may I help you?
A: Send me new data and corrections. Oh, you can also donate (do I even need to say this?)