Awesome game so far. Health, stamina, and Marrow are obvious choices, and are easily found float values. Still working on how to multiply items, like shards and morsels, as it doesn't seem to be float. Since ammo is limited and replenished at campfires, that would probably be a good one too. Since they're technically items, I'm not sure if I'm gonna run into the same float problem.
Edit: Active stats are float, and items are exact 4-byte. Knowing that, a basic knowledge of CE should be enough to enjoy the game until a trainer eventually comes around. Health can be locked at max, and I haven't felt the need to try stamina yet. Using steel shards to upgrade items, the only thing to watch out for is "breaking" shields by making it more than a +18 or +19 or so. If you go too far, just quit and reload which will take you back to the last time you used a campfire. Still haven't tried ammo.
[Edited by wirepaladin308, 1/31/2016 10:58:32 PM]