Here is the full list of all 23 Space Farmers achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Got to the end of the game with no deaths.
Escaped The Extreme Grinder
Found the funny face mask.
Didn't let the Pieosaurus die.
Made it through 'Pig Weapon' with one set of gloves.
Complete all the challenges
Did all the challenges in 1 run
Killed all the soldier bots in Cross Fire
Carried the pig 1000 metres
Found the final piggy.
Killed more chompys than your friend in a game.
Made it through Bomb Hats without collecting all the clocks.
Made it through The Grind without getting the weapons.
Spent some turnips.
Made it through the discotheque.
Got killed by a mine when not wearing the goggles in Helpful Chums
Made it to the end of game party
Killed 500 chompys
Played as another character.
Unlocked Franky in Attack Of The Vegtabots
Killed 3 chompys at once with potato bombs
Killed 100 chompys
Escaped The Grinder