Working on islands for the tundra biomes. One of the primary mechanics is penguins - your only source to get fish.

You'll have to befriend them on islands, the only way to get them. However, you can also be evil toward them.

You can steal their fish.

And also choose not to feed them, making them starve!

There are also moral decisions to make.

But the islands have secrets. Certain conditions allow you to trigger the best 'dialog option', allowing you to do things like save the entire family and earning you the "Reunited" achievement.

The tundra biome will only be in the full version.