Here is the full list of all 94 Shop Titans achievements.
Spend a lot of energy
Research lots of blueprints
Master many blueprints
Upgrade a furniture to a high level
Spend a lot of rare resources
Deal massive damage with a single attack
Increase your merchant level
Help fellow guild members
Spend a lot of uncommon resources
Fully ascend several items
Unlock all item types
Hire many workers
Earn lots of gold!
Sell a ton of items
Craft many items
Clear many quests
Make a lot of gold from a single sale
Hire many champions
Have a Hero reach a high level
Spend a lot of common resources
Bring back lots of components from quests
Slay many bosses
Open many chests
Expand your shop
Earn tokens at the Fortune Zone
Enchant an item with both a spirit and an element
Enchant many items
Enchant a legendary item
Reach Argon's final rank
Reach Sia's final rank
Reach Yami's final rank
Reach Lilu’s final rank
Reach Rudo’s final rank