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