Here is the full list of all 36 Ninja Tycoon achievements.
Take over the final Region
Survive Arcade Mode for 1 Year
Play Arcade Mode
Use a Workshop Unit
Let the reinforcements bar reach 290
Send a Ninja to reinforce the previous Outpost
Complete a Mission of Difficulty 1 with a Level 100 Ninja
Take over a Region
Send a Ninja to secure a Region
Assassinate the Clan Leader
Unlock all Research
Build 4 Training Fields
Research Training Field 3
Fully Max a Ninja
Craft 30 Pieces of Equipment
Craft a Tier 3 Equipment
Complete a Mission with Difficulty 10
Gather a Diamond
Recruit 10 Ninjas
Complete a Mission with Difficulty 7
Specialize a Ninja
Complete a Mission with 5 Ninjas
Hold 5000 Gold
Kill 200 Raiders
Hire 30 Workers
Complete a Mission with Difficulty 4
Craft a Tier 2 Equipment
Craft a Tier 1 Equipment
Build a Hospital
Research Build Area 2
Research Tower 2
Construct 20 Buildings
Gather 1000 Wood
Survive a Raid
Complete a Mission
Recruit a Ninja