version: 0.45
platform: win10
If you start a new game there are 3 options:
offline
online
creative
the description for offline and online are the same (both indicate offline).
It also appears if you start an online game with a custom charter code, you cannot play the ice world.
My YouTube tutorial series: https://www.youtube.com/watch?v=Tfw_-RB6D-Q&list=PLHw_EJXYsdHgSUAzwqvtfgpoBDm16flcP
You can with a Custom charter, it just needs to be either LIS or Zolarg based as those are the only two with ice maps.
you can't start a ice world under a custom charter code.
Its me Lego.
I started a Zolarg ice map under my own charter code just fine. I assume its the same for LIS. The charter code will need to be of the correct base type - LIS or Zolarg in order to have the option.