Here is the full list of all 72 Immortal Life achievements.
Max affinity with Xie Wentian reached
Max affinity with Yang Ziqin reached
Max affinity with Chen Yuanzhou reached
Max affinity with Ji Yaohua reached
Max affinity with Wei Hong reached
Max affinity with Li Mengqing reached
Max affinity with Mu Xia reached
Max affinity with Lin Wanxi reached
Max affinity with Zuo Li reached
Max affinity with Song Yantong reached
Max affinity with You Jinghe reached
Max affinity with Ye Yuxin reached
Got 10 normal crops
Got 20 normal crops
Got 30 normal crops
Get 10 rare crops
Get 20 rare crops
Get 30 rare crops
Get 6 precious crops
Get 1 ingredient
Get 10 ingredients
Get 20 ingredients
Get 10 kinds of superior ingredients
Make 1 kind of dish
Make 20 kinds of dish
Make 40 kinds of dish
Make 60 kinds of dish
Make 30 kinds of superior dishes
Get 1 kind of fish
Get 20 kinds of fish
Get 40 kinds of fish.
Get 1 kind of elixir
Get 25 kinds of elixir
Get 50 kinds of elixir
Learn 1 kind of spell
Learn 7 kinds of spell
Learn 15 kinds of spell
Get 1 kind of Spirit Orb
Get 20 kinds of Spirit Orb
Get 40 kinds of Spirit Orb
Get 60 kinds of Spirit Orb
Get 1 kind of Special Fire
Get 10 kinds of Special Fire
Get 20 kinds of Special Fire
Get 10,000 Spirit Stones
Get 100,000 Spirit Stones
Upgrade 1 kind of tool to superior quality
Upgrade 3 kinds of tool to superior quality
Upgrade 5 kinds of tool to superior quality
Get 10 decorations
Get 30 decorations
Get 50 decorations
Kill the boss in the Stalactite Cave Mystic Realm for the first time
Kill the boss in the Yuhua Mystic Realm for the first time
Kill the boss in the Flowery Mystic Realm for the first time
Kill the boss in the Blazing Sands Ridge Mystic Realm for the first time
Kill the boss in the Bright Moon Pass Mystic Realm for the first time
Kill the boss in the Canghai City Mystic Realm for the first time
Kill the boss in the Molten Paths Mystic Realm for the first time
Kill the boss in the Guxue Mystic Realm for the first time
Kill the boss in the Zixiao Mystic Realm for the first time
Get 10 costumes
Get 30 costumes
Get 50 costumes
Complete Wisdom of All
Complete Completion of the Main Hall
Complete The Awakening of Brother Xie
Complete Confession
Complete Final Preparation
Complete A New Beginning
Get 3 kinds of lucky fish
Get 9 kinds of legendary fish