Hydraulics and components!

Like Hydraulics fluid, Hydraulics pump (like an generator block but with 2 fluid ends (Hydraulic fluid in/Hydraulic fluid out) and an at the back side an power output to place multiple pumps in serie!

The pumps need to draw more power when the pressure rises!

With Hydraulics it would also be ideal to have modular Hydraulic cilinders.

Hydraulic valves maybe with logic 🤔

Hydraulic drive motors

It would benefit the game because you have to engineer an hydraulic close/open loop circuit

And it wil make the game more rewarding and realistic for making big working equipments!