Sure, sorry for the "dry" feeling of my feedback. I partially blame my (obvious) lacks in English language.
I loved what you did with 2400, and I appreciate all the various 24XX games spawned by it. While it's a micro-game, I surely prefer that kind of rulesets. Aside my preferences for more "modern" systems, I still think that Grave should benefit from the addition of a bestiary, and a set of GM useful tables (in the vein of those found in 24XX games) with inspiring quest seeds, noble names for the bosses, etc.