This patch fixes the error that caused people to get most of the Steam achievements upon launching the game.
This patch also allows you to reset your Steam achievements, so that people who had this issue can fix it! You can reset your Steam achievements following these steps:
1. Go to Preferences
2. Change "Clear Steam Achivements" to "Yes"
3. Click Return
4. Click "Start" if you are not already in the game
5. Click "Confirm" when asked if you want to clear Steam achievements
6. You may need to exit the game and reopen in order for the Steam library to reflect the change
Thanks to everyone for reporting this issue!