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