Looking for a game there was announced at PSX 2015 (i think)

I think it was at psx 2015 they first showed it, It was kinda like Minecraft. But with better graphics and in first person mode. And you walked through a lot of portals. I think they showed some more gameplay of it at psx 2016. But i can't remember the name of it, and thought maybe it could be cancelled since we didn't hear more about it.

Anybody there can help?

Edit: The game is called Boundless.