Little Big Apocalypse

Little Big Apocalypse summary:

After the the world ended, a Sackboy emerged from the rubble. With little idea of what came before him, he spends most of his life wandering around the wasteland. Then came a very unusual day, Sackboy discovered a strange building. Upon entering, he comes face-to-face with "The Eyes" the computer game that ended the world. "The Eyes" tell Sackboy that they are dying and need his help... without hesitation, Sackboy agrees to help them.