Arg Stairs (2017) online

Arg Stairs is a creative but withdrawn caveman, with a close group of friends. He secretly wishes to be more popular in his village. He suddenly gets what he wants when his invention, the Stairs, propels him to popularity and a spot alongside the most powerful member of the village, Blord. However his sudden ego boost strains his relationship with his true friends and leaves him vulnerable to manipulation from those with ulterior motives