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