Currently there’s two sides to the whole bionics view: Nerf the fuck out of them, or make it so you can only install so many.
Here’s an alternative idea:
Don’t nerf them, but rather make them conflict with eachother.
For example, go ahead and install the toolkit and the water extraction unit, both use the palms in their operation. However whenever attempting to use either, give a chance for a malfunction. (Like one of the malfunctioning bionics, but a single-time effect)\
Have a set of flags that determine what area a bionic installs to (Excluding fingers because even with all the “finger” bionics installed, you still have one “human” finger and it’s unlikely to have all them, but possible to have a couple but they won’t conflict regardless.)
Something like conflict_
and so on, and so on.
The odds of bionics conflicting go up the more bionics you have installed that share confliction flags. With only one other bionic installed to a conflicting area the chance is low, the more conflicting bionics, the higher the chance of something going wrong.
On top of this, I’d like to suggest that besides the malfunctioning bionic effects, a SMALL (as in this is the least likely outcome) rather than using one bionic, you use the other one that’s conflicting.
I’d also like to suggest that non-power drawing passive bionics should be excluded from the ‘conflicting’ list to prevent ‘rolling for conflict’ every turn.
Lastly, downsides to bionics:
having skin made of metal in the winter or summer is gonna suck don’t you think? Let’s run with it, when cold a chance for ‘exposed’ bionics (toolset, fusion arm, etc) You have a chance of small pain, etc.
Electromagnetic Pulse and Toolkit, both “install” to the palm. You attempt to use the heating element to cook you up some meat because why bother with spices and shit when you can just eat unseasoned meat every day for the rest of your life. Something goes wrong and your heating element malfunctions, causing pain and power loss. (Your hands get burned because the power ment for the EMP was sent to the Heating Element.)
“Something goes wrong with your Bionic Toolkit and your hurt yourself!”