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