Full list of all 44 High On Life achievements. It takes around 20-25 hours to unlock all of the achievements in the base game on Windows.
The base game contains 32 achievements, and there is 1 DLC pack containing 12 achievements.
Unlock every post in the Bounty Hunter forums.
Find and open every Luglox chest.
Collect every trading card in the game.
Sit through the entirety of the really annoying countdown show on TV.
Unlock and explore every collectible warp base.
Discover Dr. Gurgula's hideout in the Human Haven.
Complete the game with Stan's product in your inventory.
Sacrifice a Gatlian other than Kenny during the fight against Garmantuous.
Defeat Garmantuous and take down the G3 cartel.
Say goodbye to Suit-O.
Obtain Lezduit.
Defeat Nipulon.
Spend 15 hours at the very real in-game alien strip club.
Pay your bill at Applebee's.
Watch Globo's rise to fame.
Defeat the Skrendel Brothers.
Obtain Creature.
Discover the movie theater.
Defeat Dr. Giblets.
Obtain the Mag-Boots.
Obtain the Jetpack.
Obtain Gus.
Defeat Krubis.
Use Sweezy to boss around the Office Moplets.
Pop 20 Grunt eyeballs.
Obtain Sweezy.
Defeat Douglas.
Juggle an enemy in the air with at least 5 shots.
Take Knifey's advice and stab Gene in the gut.
Defeat 9-Torg.
Obtain Knifey.
Kill Slumsley.