Tiny Depths: Your Room Floods and a Toy Submarine Is Yours to Pilot

Tiny Depths starts in the room you are already in. You put on a VR headset in mixed reality, the room fills with water, a short scene shrinks you down, and a toy submarine is yours to pilot. At that size, the furniture around you becomes a reef you can explore.

It is coming soon on aeternusvita.io. Visit Tiny Depths to get notified when it is ready. This guide explains what it is, how it works and who it tends to suit, using only the official brief and store copy.

What Tiny Depths is

Tiny Depths is a mixed reality exploration game made by aeternusvita.io. The one-line pitch from the brief says it plainly: your room floods, you shrink, and a toy submarine is yours to pilot. The subtitle adds a useful shorthand — a toy sub in your room.

The core idea is scale. You stay in your own room, but the room is treated as an ocean. After the flood and the shrink, the sofa, the table and the shelves read as reef terrain. You then pilot a small craft around the shape of the room you know.

The brief lists the project for Meta Quest, Android XR and the web. The store copy describes two ways to see the ocean: in mixed reality, where the water sits in your room, and in VR, where the ocean is inside the headset. Both share the same craft and reef logic.

Tiny Depths is listed as coming soon. Nothing has been submitted to a store for release, and there is no price, release date, ratings or reviews to report.

How it starts: the room floods and you shrink

Every run of Tiny Depths begins in your room. The store copy describes it in sequence. You wear the headset in mixed reality. The room fills with water. A short scene shrinks you down. You then take the controls of the toy submarine.

The shrink is the signature moment called out in the brief. It bridges the two scales of the game. Before it, you are at room scale. After it, you are at toy scale, ready to pilot around furniture that now reads as reef.

The brief notes the flood as a passthrough water effect and the reef as terrain built around your furniture.

Piloting the submarine

Once you have shrunk, you pilot the toy submarine. You can sit in the cockpit, or follow the sub from a chase view. The brief and the Play copy both describe it the same way.

In the cockpit, you look out from inside the craft. In the chase view, you follow behind it and see the hull and the reef ahead. The copy presents the two as a choice for how you want to see the space. You can use either view as you explore.

The job stays the same in either view: steer the sub, read the shape of the room and find what is nearby.

Scanning, collecting and upgrading

As you move through the reef, you scan the creatures you meet and collect resources as you go. You scan, you collect, and those finds upgrade the sub.

The brief lists a creature codex for scanning and an upgrade path for the sub. The Play copy does not name individual species or materials, and does not set numbers for how many scans or pickups you need. It keeps the loop at a high level: meet a creature, scan it, pick up what you find and put it towards an upgrade.

Upgrading matters because it opens the next vehicles. The store copy makes that link directly: those finds upgrade the sub, and you can then take a diver suit, a crab walker or a mini sub.

Other vehicles: diver suit, crab walker and mini sub

The toy submarine is your first craft. After upgrades, three more are named in the Play copy: a diver suit, a crab walker and a mini sub.

Each vehicle can use the cockpit or the chase view. The store copy repeats that for all four — sit inside or follow from behind, whichever you prefer. The brief lists the same — four vehicles with cockpit and chase POV — as part of the V1 set.

The copy does not assign different speeds or tools to each vehicle. The diver suit puts you in the water at a small scale, the crab walker moves as a legged craft across the floor, and the mini sub is a second hull to take out. All four share the same reef and the same portal structure.

Going deeper and setting the tone

The room is the start, not the limit. Deeper biomes open beyond a portal in the room. The brief describes this as part of the core loop: explore the room-scale reef, then pass through the portal to deeper biomes. The copy does not name the biomes or set how many there are. The room remains your base.

Tiny Depths includes a calm mode. The store copy states it directly: a calm mode keeps the reef free of threats. The brief lists the same as part of V1. It is the same reef without anything to avoid, so you can scan, collect and pilot without pressure.

There is also a full VR option. The Play copy notes you can play in VR, with the ocean inside the headset. In mixed reality the water sits in your room over the passthrough view. In VR the ocean surrounds you without the room showing through. The vehicles, the views and the scan and upgrade loop are described the same way for both. Calm mode works with either.

Who it suits

Tiny Depths suits players who like slow, spatial exploration with a clear sense of place.

If you like mixed reality that uses your actual room, the hook is the flood and the shrink. You start where you are and see that space at a different scale. Furniture you know becomes terrain to steer around, without first learning an invented map.

If you like piloting a small craft, the draw is the choice of view. Sit in the cockpit for a close, inside look. Use the chase view to see the hull and the reef ahead at once. Both views are available for every vehicle.

If you like collection with light progression, the loop is simple. Scan creatures, collect resources and put those finds towards upgrades. The reward is access to more vehicles and to the deeper biomes beyond the portal.

If you prefer a quieter session, calm mode keeps the reef free of threats so you can focus on piloting and collecting at your own pace.

For younger players, treat it as a shared activity. An adult can handle the headset and keep the play area clear. Keep space so controllers stay clear of furniture, and take breaks as needed. The brief does not set an age rating.

What coming soon means and how to get notified

Tiny Depths is listed as coming soon on aeternusvita.io. That is the only availability status in the brief. There is no price, release date, pre-order, ratings or reviews yet, and nothing has been submitted to a store for release.

To follow it, head to Tiny Depths and use the notify option on the product page. That is the simplest way to hear when the listing is live.

When you visit, you will see the short pitch — your room floods, you shrink, and a toy submarine is yours to pilot — and the longer description that sets out the views, the vehicles, the calm mode and the VR option.

Quick recap

• What it is: a mixed reality game where your room floods, you shrink and pilot a toy submarine around furniture turned to reef.
• How it starts: headset on, room fills with water, short shrink scene, take the controls.
• Views: cockpit or chase for the sub and for every other vehicle.
• Loop: scan creatures, collect resources, upgrade.
• Other vehicles: diver suit, crab walker and mini sub.
• Deeper water: biomes beyond a portal in the room.
• Tone: calm mode keeps the reef free of threats; VR mode puts the ocean inside the headset.
• Follow: Tiny Depths — coming soon, use notify on the product page.