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