Neptune Escape Rocket

The Neptune Escape Rocket is a vehicle that is used to leave Planet 4546B and beat Subnautica. It consists of five constructable parts: the Neptune Launch Platform, the Neptune Gantry, Neptune Ion Boosters, Neptune Fuel Reserve, and Neptune Cockpit.

The Neptune Launch Platform can be built using the Mobile Vehicle Bay, while the other four components are built on the launch platform. The player can enter it after the Gantry, Boosters, and Fuel reserve is built.

The Neptune Escape Rocket cannot be launched unless the Quarantine Enforcement Platform is disabled. Attempting to do so will result in the PDA informing the player that the base needs to be disabled.

Although launching the rocket is intended to be Subnautica's ending, using the rocket does not disable the save file like how a Hardcore death does. Once the cut-scene and credits conclude, the player may continue to play from the most recent save of the file.

Description

The Neptune is a massive ion powered rocket used to leave Planet 4546B after the Quarantine Enforcement Platform is disabled. Once the launch procedure is completed, the final cut-scene begins and the game comes to an end.

Blueprints

The player can find the blueprints for the Neptune Launch Platform inside the Captain's Quarters of the Aurora. The door will be locked, but can be accessed using the entry code, which is 2679. Accessing the data entry will unlock the Blueprints.

The ingredients for all Neptune systems are not accessible right after acquiring it, instead the ingredients of each system are revealed after the previous system is constructed.

The Neptune Launch Platform is a very large floating barge with ladders on each side. In the middle is a circular indentation where the rocket will sit. On one side is a terminal used to construct the individual rocket segments, and can be used to rename and recolor the rocket once it has been fully completed. The terminal possesses fabrication drones similar to the Mobile Vehicle Bay.

The Neptune Gantry is the second component of the Neptune Rocket. It consists of a small metal pillar with a bridge (which eventually leads into the Neptune Rocket) and an elevator which can lift the player to the top of the gantry to access the cockpit.

The first stage of the Neptune Rocket consists of a cylindrical shape with launching clamps connected to it. This portion consists of the thrusters which will provide enough velocity to leave the orbit, and serves no personal function other than to progress to the other stage.

The second stage adds more to the body of the rocket, including the hatch that leads inside, where the player can find a ladder leading up to the cockpit, as well as lockers surrounding the central column. Three levers can be found in this section as well, and it is required to pull them in order to launch. The engine is housed here as well.

The third and final stage represents the main cockpit of the Neptune Rocket. Here the player can access the Time Capsule launcher, main CPU, life support systems, and the command chair which will initiate the launch to escape Planet 4546B.

Lift off

Once the Neptune Escape Rocket has been completed, the player can "say farewell" to their Cuddlefish.

In order for the Neptune Escape Rocket to be able to launch off world there are certain, smaller requirements that have to be met.

First, the player must activate five out of the Neptune's six, various subsystems - three on the lower deck, right after entering the rocket and two out of three on the upper deck, in the cockpit after climbing a ladder. When the required subsystems are all activated, Neptune's AI will inform the player that they are ready for liftoff; the order doesn't matter. Before the player is able to initiate the launch sequence, they must first disable the Quarantine Enforcement Platform by curing themselves of Kharaa and interacting with the control terminal at the Mountain Island to turn it off.

Pre-Flight Check

"NEPTUNE: Life support systems online." "NEPTUNE: Pressurizing hydraulics." "NEPTUNE: Auxiliary power unit online." "NEPTUNE: Time Capsule ready." "NEPTUNE: Communications systems array active." "NEPTUNE: Primary computer systems active." "All systems GO."

Launch Sequence

"Ready to launch on your command captain. Launch in 10...9...8...7...6...5...4...3...2...1... Time capsule jettisoned. Caution: approaching orbital debris field. Orbital debris field clear. Performing gravity turn maneuver. Confirm destination coordinates: nearest interstellar phasegate. Engaging ion thrusters in 3...2...1..." "Welcome home to Alterra. Permission to land will be granted once you have settled your outstanding balance of: 1,000,000,000,000 credits." "What is a wave without the ocean? A beginning without an end? They are different, but they go together. Now you go among the stars, and I fall among the sand. We are different. But we go... together."

Crafting

Neptune Launch Platform

Lead × 4
Titanium Ingot × 1
Computer Chip × 1
Mobile Vehicle Bay (Required)

Neptune Gantry

Neptune Boosters

Nickel Ore × 1
Aerogel × 1
Wiring Kit × 1

Neptune Fuel Reserve

Neptune Cockpit

Cyclops Shield Generator × 1
Enameled Glass × 1

Total Raw Materials List (alphabetical)

Acid Mushroom × 4
Lithium × 8
Copper Ore × 10
Nickel Ore × 3
Creepvine Seed Cluster × 3
Quartz × 2
Crystalline Sulfur × 4
Ruby × 2
Deep Shroom × 3
Salt Deposit × 1
Gel Sack × 2
Titanium × 60 or Metal Salvage × 15
Gold × 10
Silver Ore × 8
Ion Crystal × 4
Stalker Tooth × 1
Kyanite × 4
Table Coral Sample × 6
Lead × 4

Data Bank Entry

This blueprint set was developed at Alterra headquarters specifically to get you off 4546B and back to the nearest phasegate. It takes into account local gravity, astronomical data and available resources, and is piloted by AI. It may be adapted to employ whatever power source is available - but it will require a lot of it.

It consists of five independently constructible elements:

Launch Platform: Floating platform provides a solid base from which to launch the rocket
Gantry: Provides structural support
Stage 1: Primary thrusters for reaching atmosphere escape velocity
Stage 2: Fuel reserve
Stage 3: Cockpit

Features:

One-person life support
Short-range communications
Adaptable power supply
Orbital shielding
Onboard time capsule

Warning: Onboard AI will not launch if local threats are detected. Warning: The use of alien materials to power the craft may increase its range in unpredictable ways.