Damn the UI is clean.
Return RNG is the counter for grind. The classic example is Diablo II loot.
You just have to gather suggestions for random cool things to happen when you click something more than once.
Scraping something right off the top of my brain would be an emergency handjob to test functionality while repairing an arm. If you don't use the AP to get this handjob the arm gets a defect, otherwise it will improve significantly more and you gain extra xp and a chance for a perk.
Moving on though I have a serious question for you and everyone.
How is installing a custom orifice not the highest priority in these games? I can see how it wouldn't slot in this game given the direction it's starting from, but am I fuckin crazy? It's not just this game, it's all games. I'm starting to think that it's some kind of niche fetish I'm clinging to. I need validation, someone tell me i'm stupid, crazy, I don't fuckin care. I'll be in your debt.
Great game, great concept, this is a winner.
My suggestion for your next move is to add more animation variations, but I have no complaints about this version whatsoever.
Keep it up