Here is the full list of all 23 39 Days to Mars achievements worth 1,000 gamerscore.
Defeat the giant space kraken.
Get eaten by the giant space kraken.
Land on Mars.
Crash on Mars.
Finish 39 Days to Mars with one player.
Finish 39 Days to Mars with two players.
Fail at something.
Make 39 cups of awful tea.
Drink 39 cups of perfect tea.
Leave the fire hydrant running when you embark.
Capture all the specimens and clean up afterwards.
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 50 minutes.
Collect enough coal without running out of oxygen.
Fix the ships controls on the first attempt.
Fix the water leak on the first attempt.
Break 39 asteroids while mining for coal.
Capture 39 specimen for the specimen tank.
Play through 39 Days to Mars in one sitting.
Complete 39 Days to Mars in less than 30 minutes.