Devlog # 2: Sandbox mode:
Today, I’m excited to talk to you about a new mode coming to our game, Survive: The Alien Tracing. We’re just starting to introduce it now, as we’ve been finishing up some of the mechanics.
It’s something we’ve been thinking about from the beginning, but we weren’t sure if we could implement it, so we didn’t present it when we launched our Steam page. Now, with most of the mechanics and some maps completed, we’re finally ready to reveal it.
This game is turning out to be bigger and more ambitious than originally planned, and we know fans of sandbox games and open-world survival and resource management will love it.
SANDBOX MODE:
Survive: The Alien Tracing will not only feature a STORY MODE, where you’ll uncover the mysteries of the alien race (The Fallen of Elun) and search for Miles’ son, the game’s protagonist, but it will also offer a SANDBOX MODE where you’ll have to survive in a world overrun by zombies and other dangerous environments.

More info here.