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