Diorama puzzle game GNOG is free on the Epic Games Store until August 15.

The puzzle game is for sale on from most storefronts already — including releases on GOG, itch.io, Oculus, Steam, iOS, and PS4 — but if you haven’t played it yet then you can grab it for free via Epic’s storefront.

We rated the game’s diorama puzzles 7/10 back in 2017, describing its design as encouraging “you to feel things out and let the puzzles unravel on their own.”

Developer KO_OP made GNOG. They are now working on a new game for Apple Arcade called Winding Worlds.

GNOG joins a growing collection of titles with VR support making their way onto more PC storefronts. Epic recently became the exclusive storefront for Tetris Effect on PC, at least for a time, with play modes for Oculus Rift and HTC Vive.

GNOG originally released on PC in July 2018. Here’s the game’s official description:

“GNOG is a 3D puzzle game set in a tactile world of toys and secrets. Point, click, grab, poke, spin, pull, and play with uniquely charming monster heads as you explore the hidden worlds inside them. Filled with eye-catching designs, playful interactions, and a rich, reactive soundtrack, the hand-crafted heads come to life in either standard play or in VR.”

“Inspired by real-world toy designs, every GNOG head is a miniature world to discover. Grab a bookcase and spin it to reveal a hidden pile of coins, slide levers to navigate a damaged ship through outer space, crank a wheel to cook a stew on the stove – each playful interaction generates lively feedback and surprising consequences. Set to a relaxing and dynamic soundtrack that evolves with each level, the surreal worlds and joyful puzzles of GNOG will have you turning heads.”