Nice game! I like it! :D
The game is straightforward yet really challenging at certain point progression of the game!
The thing I kinda struggled with is the control. even tho it felt intuitive, but it felt too much on my left hand XD
Because as I need to focus on moving around using WASD and space, spamming F to fix things got my hand tired really quick. Maybe changing it to left quick mouse would be better!
My suggestion: maybe you could also add an aiming mechanic to it! so, the player must hover, and spam left click their cursor on the problem they want to fix.
Otherwise, it was a fun game! :D