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