Here is the full list of all 23 39 Days to Mars achievements.
Finish 39 Days to Mars with two players.
Play through 39 Days to Mars in one sitting.
Land on Mars.
Get eaten by the giant space kraken.
Capture all the specimens and clean up afterwards.
Fix the ships controls on the first attempt.
Fail at something.
Fix the water leak on the first attempt.
Defeat the giant space kraken.
Crash on Mars.
Finish 39 Days to Mars with one player.
Make 39 cups of awful tea.
Drink 39 cups of perfect tea.
Leave the fire hydrant running when you embark.
Capture all the specimens without cleaning up.
Fail everything and still make it to Mars.
Finish 39 Days to Mars without ever failing a puzzle.
Embark on an adventure without completing the volatile helioscopic password generator.
Complete 39 Days to Mars in less than 30 minutes.
Collect enough coal without running out of oxygen.
Break 39 asteroids while mining for coal.
Capture 39 specimen for the specimen tank.
Complete 39 Days to Mars in less than 20 minutes.