The Tundra Add-on for Anno 2205 has 10 achievements.
Settle Tundra Scientists in one of your cities.
Drain a swamp.
Complete the sector project in Vanha Plains.
Complete 10 Assignments for your Vanha Plains employees.
Drain all swamps in Vanha Plains.
Construct a Tundra Module in every region.
Construct 10 Musk-ox Ranches in Vanha Plains.
Construct 10 Drilling Rigs in Vanha Plains.
Produce Biocatalysts and Aerogel.
Run 10 transfer routes out of Vanha Plains.