Here is the full list of all 12 Tower Bloxx Deluxe achievements worth 200 gamerscore.
You've built the Waving Tower of Pisa.
Reach a population of 200,000 in Build City Mode
Reach a tower height of 600 in Quick Game
Win 50 competitive multiplayer matches.
Reach the last milestone in Build City Mode
Overtake three of your friends in Quick Game's friend ladder.
You've mastered Time Attack and shown the clock who's the boss.
You dropped 10 perfect drops in a row. Mad skills.
You didn't like the mayor's suggestion and renamed the city.
You're a true master architect after building a 300 block tower.
Keep on dropping those blocks. 100 blocks ain't nothing!
You did one perfect drop.