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