I assume its a memory editor. Never used it but have used TSearch which I got back in the day here at CH.
I would also like to second the request for Scientist/Engin/Resource editing feature.
Another question, Anyone kno if the direct from Steam and the physical box version are the same?
[Edited by Enigma_TL, 10/10/2012 3:05:07 PM]
The magic word is 'cheatengine' and Google is your friend. Run through the tutorial and by the end you'll gain a newfound respect for the trainer-makers here.
After you've done the first few steps of the tutorial, you'll understand what this means: so far every value seems to be a standard 4-byte, and unless you find the correct pointers, the addresses will change after every mission.
I personally prefer MHS for its interface, but it, Cheatengine, Artmoney and TSearch are all pretty similar.