Here is the full list of all 27 Tabletop Simulator achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Save 100 items to your Chest.
Play Tabletop Simulator for over 100 hours.
Create an 8 player “light show” with the line drawing tool.
Tint 1000 objects a different color.
Play a civilized game of Chess for 1 hour.
Flip the table in an absolute fit of rage… 100 times.
Have two RPG figurines attack one another. They must hit!
Lock 5000 items over time.
Complete the tutorial in under 30 seconds.
Change your color more than 50 times.
Play Tabletop Simulator for over 50 hours.
Play a game in zero gravity.
Play Tabletop Simulator for over 10 hours.
Complete the in-game tutorial.
You tried to flip the table… and failed!
Play a game with someone on your friend's list
You spawned the developers’ special figurines!
Use your personal color page in the notebook.
Play the game for 1 hour without flipping the table.
Play a game with a full room of 8 players.
You posted a message in global chat, hurray!
Flip the table over 1000 times.
Spawn 10,000 poker chips!
Upload at least 3 legitimate Steam Workshop items.
Play Tabletop Simulator for over 200 hours.
Play Tabletop Simulator for over 500 hours.
Play Tabletop Simulator for over 1000 hours.