Here is the full list of all 26 Kalaban achievements.
Build the flamethrower
Save your boss
You've saved the two guys at the junkyard
Keep on clicking the outhouse
Finish the game
Spare his life
Kill the huge tree monster
Complete the bartender's quest
Drink all the beer and whiskey you can
Maybe that was not wise
You've discovered the mysterious fungus
Find that certain gun
Tamper with the plant computer
Kill 100 enemies
Reunite the sisters
Kill an enemy with the explosion of a Blow-up
Why would there be keys in a locked car?
You died
Find the bag of something
Start the generator
Sometimes you just need something to get through the day
Visit the sauna
Find the keys to the big house
Find the flashlight
Find an apple
Get your first armor