well, i was right about xp, i restarted the game, and logged the xp total for each level, and it works. Also there doesnt seem to be a level cap, so while i cant change the points gained, i can make myself so higg a level i can max everythign out anyway. I currently set my level to 100 with 46499/46500xp giving a total of 3750999 xp all together
its pretty easy, so far ive maxxed out all skilsl cept techno, got 999 of all items ive foudn so far, and have given myself 9999999 serum ; ).
For items search 4 byte integer For Serum search 4 byte integer For XP search Float
Load up cheatengine, search for the current value, then wait till you change it, e.g loot mroe mats, or earn more xp etc. then switch back to cheatengine, and ptu the new numebr into the search bar, and click next scan, do this till you get 1 or 2 resutls, then change them to what you like. XP is the only one you need to do from the beginning, unless youve been keeping track of the xp amount for each level.
I will upload my current save though, its very early on, before you enter the mess, im already maxxed all skills, with enough to max techno later, 999 of the 3 items ive found so far, so that will help you already.