Here is the full list of all 15 Amusemos achievements.
User purchased their first game.
Won Aces Up at least 7 times
Won level 10 on Hard Drive
Reached level 7 in Rogue Treasures
Accepted classified intel
Reached bedrock in Dig Money
Won Bulls & Cows at least 7 times
Scored 10 or more 4 points in Pinball 1910
100 or more enemies killed in Galactic Gunsell
Reached 100 million population in City Clicker
Won a pot of 500GB or more in Texas Holdem
Won Speed 3 times in one session
Purchased Dig Money
Had 2000 balls on screen at once in Ball Pit
Got all games, apps, toys, and classifieds