idea for shelter improvment

[Antoine Jdn 3]

in the garden :

> a composter that would give fertilizer,
to make it evolve, it would require apples

 

at home :

> an economizer something like
That would reduce the cost of all improvements

 

And for or from a certain level of improvement: ~ 10 lvl
the improvements would give a second bonus for some of them

for the scrap recycler > nails and cables
the elolienne = a little electronics
etc.