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