Here is the full list of all 40 Driftland: The Magic Revival achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Win the Final Campaign
Make your Heroes tame 500 flying beasts.
Win your 5th Single Player game as Wild Elves.
Build 1000 bridges.
Win your 3rd Single Player game as Wild Elves.
Discover 1000 resources with Geology.
Win your 1st Single Player game as Wild Elves.
Win your 5th Single Player game as Dwarves.
Win a Dwarves Campaign
Unlock the Final Campaign
Build 1000 structures (bridges no included).
Win your 3rd Single Player game as Dwarves.
Win your 1st Single Player game as Dwarves.
Win your 25th Single Player game as Dark Elves.
Win a Dark Elf Campaign
Win your 10th Single Player game as Dark Elves.
Win your 5th Single Player game as Dark Elves.
Win a Human Campaign
Open 200 treasures.
Recruit 100 Heroes in total.
Make your Heroes tame 50 flying beasts.
Have 100 of enemy Heroes killed in total.
Build 100 bridges.
Build 100 structures (bridges not included).
Discover 100 resources with Geology.
Create an Empire of at least 20 islands.
Win your 25th Single Scenario as Humans
Recruit 10 Heroes in total.
Make your Heroes tame 5 flying beasts.
Discover 10 resources with Geology.
Build 10 bridges.
Win your 10th Single Scenario as Humans.
Build 10 structures (bridges not included).
Open 20 treasures.
Win your first Single Player game.
Win your 5th Single Scenario as Humans.
Recruit 1000 Heroes in total.
Open 2000 treasures.
Complete the Tutorial.
Win a Multiplayer Game