Sony Online Entertainment has released the first gameplay trailer for its upcoming post-apocalyptic PC MMO H1Z1, showing off the free-to-play game’s environment, features, and zombies.

The trailer shows characters moving through dark and dreary environments while laying waste to zombies with an assortment of weapons. “Will you survive?,” the trailer asks. Sony has not yet set an official release date for H1Z1, but the company says an in-development version will be available through Steam Early Access “in the upcoming weeks.”

Earlier this week, Sony held a 12-hour live-stream event for H1Z1, giving viewers a behind-the-scenes look at the game’s development. If you missed this presentation, you can watch a replay of the stream in its entirely at the game’s Twitch channel.

Sony announced H1Z1 earlier this month. It features a destructible world “on a massive scale” that players can alter by building new structures–and destroying others. The game also features a day/night cycle, dynamic weather, and items that you can set on fire. Further, H1Z1 has a crafting system described as “expansive” that allows players to build things like weapons and even fortresses. The game’s zombies are described as “unpredictable” and as having been programmed with “emergent” tendencies.

As a free-to-play game, H1Z1 will have microtransactions, but Sony says it will only sell items that are “fair.” For more on H1Z1, be sure to read GameSpot’s previous coverage.