Developer Obsidian Entertainment have released the Koi Pond 0.4 update for survival game Grounded.

Grounded is in Early Access for Windows PC (via Steam), Xbox One, and Xbox Series X.

As previously reported, players take on the role of children trapped in a “Honey I Shrunk The Kids” scenario. Stuck in a backyard and surrounded by hostile insects and critters, players will need to forage for food, build a shelter, and defend themselves against bugs lest they become food.

The new update introduces the new biome of the Koi Pond, giving players a large underwater area to explore- with plenty of threats. New creatures include a one-eyed koi fish, diving bell spiders, tadpoles, and water boatmen. Players can also gain Koi Armor, a Bubble Helmet, Flip Flops and plenty of new tools.

The update also introduces Landmarks and secrets to discover, along with quality of life improvements based on feedback.

You can find the full rundown on the update here, and the Koi Pond trailer below.

You can find a full rundown of the game (via Steam) below.

The world is a vast, beautiful and dangerous place – especially when you have been shrunk to the size of an ant. Explore, build and survive together in this first person, multiplayer, survival-adventure. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?

REACTIVE WORLD
Explore this immersive and persistent world, where the insect life reacts to your actions.

BASE BUILDING
Shelter and tools are critical to your survival. Build epic bases to protect you and your stuff from the insects and the elements. Craft weapons, tools, and armor, allowing you to better fight, explore and survive.

ONLINE CO-OP
You can face the backyard alone or together, online, with up to three friends – the choice is yours.

CAMPAIGN
Uncover the secrets lurking in the shadows of Grounded as you freely explore the backyard and progress through its mysterious story.