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.
Recruit 1000 Heroes in total.
Win the Final Campaign
Make your Heroes tame 500 flying beasts.
Win your 5th Single Player game as Wild Elves.
Win a Dwarves Campaign
Unlock the Final Campaign
Win your 5th Single Player game as Dwarves.
Win a Dark Elf Campaign
Win your 25th Single Player game as Dark Elves.
Win a Human Campaign
Discover 1000 resources with Geology.
Win your 3rd Single Player game as Dwarves.
Build 1000 structures (bridges no included).
Win your 3rd Single Player game as Wild Elves.
Build 1000 bridges.
Win your 10th Single Player game as Dark Elves.
Win your 25th Single Scenario as Humans
Win your 10th Single Scenario as Humans.
Open 200 treasures.
Win your 5th Single Player game as Dark Elves.
Win your 1st Single Player game as Dwarves.
Make your Heroes tame 50 flying beasts.
Win your 1st Single Player game as Wild Elves.
Recruit 100 Heroes in total.
Build 100 bridges.
Discover 100 resources with Geology.
Build 100 structures (bridges not included).
Win your 5th Single Scenario as Humans.
Win your first Single Player game.
Have 100 of enemy Heroes killed in total.
Create an Empire of at least 20 islands.
Recruit 10 Heroes in total.
Make your Heroes tame 5 flying beasts.
Build 10 bridges.
Open 20 treasures.
Discover 10 resources with Geology.
Build 10 structures (bridges not included).
Complete the Tutorial.
Open 2000 treasures.
Win a Multiplayer Game