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