Epic Games Store is offering Inside for PC and Celeste for PC and Mac for FREE (regularly $19.99 each) for a limited time.

Celeste is a super-tight platformer from the creators of TowerFall. Brave hundreds of hand-crafted challenges, uncover devious secrets, and piece together the mystery of the mountain.

Inside is a puzzle-platformer adventure game developed and published by Playdead. Hunted and alone, a boy finds himself drawn into the center of a dark project.