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