Here is the full list of all 67 No Heroes Here achievements.
Feed 20 Chicken to enemies to Unlock the Chef
Kill 35 Scientists
Finish the Main Path in Trollmeria (Normal Mode)
Finish the Challenges in Trollmeria
Craft 25 Water Balloons
Kill 35 Witches
Kill 60 Trolls
Kill 150 Archers
Kill 300 Whale Hunters
Kill 350 Eskimos
Craft 450 Blackpowder
Craft 300 Cannonballs
Finish the Challenges in Noobland
Kill 40 Bannermen
Craft 20 Honey Flasks
Finish the Main Path in Noobland (Normal Mode)
Craft 1500 Cannonballs
Craft 4500 Cannonballs
Craft 1800 Blackpowder
Craft 6300 Blackpowder
Craft 100 Honey Flasks
Craft 350 Honey Flasks
Kill 350 Swordsman
Kill 750 Swordsman
Kill 2625 Swordsman
Finish the Main Path in Punsylvania(Normal Mode)
Finish the Challenges in Punsylvania
Finish the Main Path in the Hardcore mode
Kill 400 Archers
Kill 1400 Archers
Kill 90 Bannermen
Kill 315 Bannermen
Kill 65 Ogres
Kill 180 Ogres
Kill 630 Ogres
Craft 130 Water Balloons
Craft 455 Water Balloons
Kill 830 Eskimos
Kill 2900 Eskimos
Kill 650 Whale Hunters
Kill 2275 Whale Hunters
Kill 90 Witches
Kill 315 Witches
Kill 100 Trolls
Kill 350 Trolls
Craft 30 Chickens
Craft 150 Chickens
Craft 525 Chickens
Kill 750 Zombies
Kill 2000 Zombies
Kill 7000 Zombies
Kill 600 Skeletons
Kill 1500 Skeletons
Kill 5250 Skeletons
Kill 90 Scientists
Kill 315 Scientists
Kill 55 Werewolves
Kill 160 Werewolves
Kill 560 Werewolves
Finish all the Levels and the Challenges in Normal Mode
Kill 50 Ogres to Unlock the Midget Ogre
Choose a team with only female characters
Choose a team with the Midget Ogre, Trainer, Blacksmith and Babuskha
Kill 4000 Enemies
Kill 10000 Enemies
Kill 31500
Freeze 100 Enemies to Unlock the Savage