A solid release date was just announced.
Paper Beast

We last brought word of the sandbox mode that would be included with Paper Beast, the upcoming game created by Eric Chahi. Today, we are passing along word that Paper Beast now has a solid release date for PlayStation VR. That release date is March 24.

Paper Beast is the latest creation from Eric Chahi, the creator of classic titles such as Another World and Heart of Darkness. Paper Beast will take players on a "dreamlike odyssey through a wild, simulated ecosystem." You will see strange and exotic creators as you ponder over the solution to various environmental puzzles. As you progress, you will "unfold the mysteries of a land born from long-lost Internet data."

Paper beast has been built from the ground up with virtual reality in mind. The adventure mode will allow players to work with the wildlife to shape their environment in an effort to overcome obstacles. You will be able to control things like the weather and deform the terrain to alter the way the animals behave. This is all in an effort to try to make progress through the fantasy lands.

The sandbox mode that was revealed a short while back, allows you to freely experiment with the game's systems without having to concern yourself with having to make "progress" towards any specific goal. That is kind of the idea behind nearly all sandbox modes in games. Just as the case is with the adventure mode, the consequences of what you do is "calculated in real-time by the deep physics engine that powers Paper Beast."