Novikostok. Punchcards and keys

Ahoy-hoy.

First of, there's always arguments for both spoiling/telling/hand-holding etc - vs finding out stuff on yer own. I'm fine with both really. Soo... depending on how the thread goes, maybe there'll be spoilers? Who knows! :)

Anyhoots. Been playing alot of Novikostok lately - enjoying it. I've found some container keys, but not where to use them. Also, I understand there's some punchcards aboot? I have yet to see one, but I have found one place where I think one is needed... Typical, hehe

So. Anyone else enjoying the map? Found some doors/cards/keys/containers/areas of interest?

Thanks.