Here is the full list of all 27 Tabletop Simulator achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Play Tabletop Simulator for over 200 hours.
Play a game with a full room of 8 players.
You spawned the developers’ special figurines!
Upload at least 3 legitimate Steam Workshop items.
Save 100 items to your Chest.
You tried to flip the table… and failed!
Play Tabletop Simulator for over 100 hours.
Lock 5000 items over time.
Play Tabletop Simulator for over 50 hours.
Tint 1000 objects a different color.
Flip the table over 1000 times.
Play Tabletop Simulator for over 10 hours.
Spawn 10,000 poker chips!
Change your color more than 50 times.
Complete the tutorial in under 30 seconds.
Have two RPG figurines attack one another. They must hit!
Flip the table in an absolute fit of rage… 100 times.
Use your personal color page in the notebook.
Play a civilized game of Chess for 1 hour.
Play the game for 1 hour without flipping the table.
You posted a message in global chat, hurray!
Play a game in zero gravity.
Play a game with someone on your friend's list
Complete the in-game tutorial.
Create an 8 player “light show” with the line drawing tool.
Play Tabletop Simulator for over 500 hours.
Play Tabletop Simulator for over 1000 hours.