Here is the full list of all 26 The Legend of Tianding achievements.
Defeat Wang
Complete the tutorial level.
Defeat Nakamura Michiaki.
Defeat Kawajima Kaguya.
Defeat Chen Liang-Jiou.
Defeat Ting Pîng.
Defeat Shimada Yunoshin
Help Captain Matsumoto survive the battle at Zhongyi Temple.
Capture Ching Feng and dispel the rumors.
Teach Furuyama a lesson.
Help A-Guai safely escape Jiangyue Lou Restaurant.
Threaten Li-Hong.
Pretend to be Furuyama and scare Li Hong away.
Complete the game.
Liao Tian-ding escapes death.
Explore the entire Dadaocheng sewer system.
Explore the entire military factory underneath the North Police Station.
Explore the entire express train.
Explore all of Yaoling Mausoleum.
Obtain the legendary weapon: Demon Slayer.
Unlock the maximum amount of buns you can carry.
Collect all items.
Obtain all talismans.
Listen to the entire Taiwanese traditional folk singing performance at Hokumon Chō.
Complete the game on Hardcore difficulty.
Complete all achievements.