Here is the full list of all 20 Microsoft Treasure Hunt (Windows 8) achievements worth 200 gamerscore.
Used a map 20 times
Collected 1000 gold in bonus levels
Purchased 3 Amulets in one game
Entered a shop with at least 500 gold and spent down to exactly 0 before you leave
Dug all dirt tiles without traps on any level
Reached level 3 without picking up any gold or treasure
Defeated 3 monsters
Reached the exit on level 1
Triggered your first trap
Purchase the 8 Dynamite Bag
Purchase the 10 Pickaxe Belt
Purchase the 15 Map Tube
Have 5 hearts
Reach the exit on level 11 without using any flags
Reach level 12 without dying or respawning
Gather 5000000 gold
Use a dynamite 8 times during one level
Defeat 5 bats without defeating any other monsters in-between
Dig 1000 dirt tiles by "chording" (placing flags on nearby traps and tapping the adjacent tiles)
Purchase all item and heart upgrades for your character