I have many new ideas for your game development.Some are them are below

1. There should be cave like structure where we find coal and diamonds. Coal can be used for generators and diamonds for drilling purposes.

2. There be a water pond where we can use the water by filtration unit. The can water can also be pumped to the base using a pump unit via pipes.

3. There should be a new unit so it can be attached to the hover to dig or to created an artificial pond.

4. New material should be added like copper, quartz, titanium, etc. Quartz for making solar panels.

I feel happy if you like my ideas

Regards
My Channel: Youtube.com/ghostygamer