Here is the full list of all 27 Tabletop Simulator achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Flip the table over 1000 times.
Play Tabletop Simulator for over 1000 hours.
Upload at least 3 legitimate Steam Workshop items.
Play Tabletop Simulator for over 500 hours.
Lock 5000 items over time.
Create an 8 player “light show” with the line drawing tool.
Play Tabletop Simulator for over 200 hours.
Save 100 items to your Chest.
Tint 1000 objects a different color.
Play Tabletop Simulator for over 100 hours.
Spawn 10,000 poker chips!
Change your color more than 50 times.
You spawned the developers’ special figurines!
Have two RPG figurines attack one another. They must hit!
Complete the tutorial in under 30 seconds.
Play Tabletop Simulator for over 50 hours.
Play a game with a full room of 8 players.
Use your personal color page in the notebook.
Play a game in zero gravity.
Play a civilized game of Chess for 1 hour.
Flip the table in an absolute fit of rage… 100 times.
You posted a message in global chat, hurray!
Play Tabletop Simulator for over 10 hours.
Complete the in-game tutorial.
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