A shield mk3 needs 2.5K copper plate and mk 4 needs 25K copper plate surely they should required 1 or 2 of the previous level not 10!

Putting it another way, as it currently stands to make 1 mk4 shield requires 1000 mk 1 shields.

Thanx, we will fix it

Not a big problem imo.
Many games use the concept of progressivly more difficult to get gear.

Though this argument is usually incredible stupid, here it is correct:
"If you dont like it, don't use it"

You can also play with Mk 2 or 3. You really dont need the highest Tier, it is not that much better. On the other side, chasing after a super expansive high end Max Tier item can be interesting.

If all the equipment had massive cost increase then that would be something else, but the other things like laser defence, batteries exos etc do not have this massive increase.

If all the equipment had massive cost increase then that would be something else, but the other things like laser defence, batteries exos etc do not have this massive increase.

I think it would be best if everything had a factor of 2-5. 10 is indeed a little bit too excessive.

A bit of random to late game recipes is ok. It's not much fun when everything is standartized and predictable.