A group of total losers escaped the annihilation of the Shitlings kingdom. Now they've embarked on a mysterious quest to preserve the last legacy of their people. Constantly hunted by the fabulous children of light, they travel through hostile lands equipped with dark magic and the power of friendship. 

Put your useless Shitlings to work! Order them to gather whatever these baren lands have to offer, produce advanced materials, and build structures.

Plan carefully as camp area is limited! Create workshops, dark magic altars, meat grinders, and other vital constructions.
The newest invention of Shitlings - the wheel - allows them to move the camp between levels, so that you don't need to rebuild everything from scratch each time you progress.

Filthy servants of light continue to harass your Shitlings. To prevent this evident bullying, shoot them with explosives and nasty bolts. It works!
A set of deadly traps and defensive turrets can help your pathetic pupils avoid gruesome and pointless death.
Be careful, placement matters! The higher the turret is built, the farther it shoots. Physics.

Total dependence and awkwardness. Make sure that none of the cheerful bunch starves to death or dies of exhaustion. If you keep them alive long enough, they might actually learn a thing or two.
Choose a specialization depending on their experience, and their usefulness might even go from zero to minimal.

Your Shitlings have some delusion about the importance of their existence and purpose. Probably a defense mechanism. But you can as well lean towards these fantasies and help them reach their goal.
Clear each level's objectives, move between maps, and travel towards the Final Disappointment.
Have fun!