Room-scale vehicle

Room-scale vehicle
Load video YouTube YouTube might collect personal data. Privacy Policy ContinueDismiss
Information
Type	Room-scale
Required Devices	Motion-tracked controllers
Description	Entire play space becomes the inside of the vehicle, operate the controls in the vehicle to move the vehicle
Pros	Physical walking inside the vehicle combined with fast travel across large virtual environments; the vehicle's surroundings give the user a visual frame of reference
Cons	The vehicle's own movement is still artificial and can cause discomfort; the walkable interior is limited by the size of the physical play area
Creator	Hover Junkers
Examples	Hover Junkers, IronWolf VR

Room-scale vehicle is a Locomotion Method for virtual reality (VR) in which the user's whole tracked play space becomes the inside of a virtual vehicle, such as a ship's deck or a submarine compartment. The user walks around that interior with ordinary room-scale tracking and operates controls inside the vehicle to move it through the virtual world. The approach combines two forms of travel: physical walking for movement within the vehicle, and artificial locomotion for the vehicle's movement across the environment.

The example named in 2016 press coverage is Hover Junkers by Stress Level Zero, in which each player stands on a hovering ship chosen to roughly match the size of their real play area. Road to VR described "roomscale vehicles" as a distinct locomotion category in February 2016, two months before Hover Junkers was released. It is related to seated Cockpit / Vehicle locomotion, in which the user sits in a virtual cockpit, but differs from it because the user can stand and walk around inside the vehicle.

Reviewed 27 September 2026. Checked every cited claim against the Locomotion Vault dataset and CHI 2021 paper, Road to VR, UploadVR, Digital Trends, KitGuru, both Steam store pages, and the Luks and Liarokapis and Ang and Quarles papers. About review dates.

How it works

The walkable part of the vehicle is designed to fit inside the user's tracked area, and the user moves around it by physically walking, using normal room-scale tracking. Moving the vehicle itself is done through in-world controls. In Hover Junkers, players select one of 17 ships that range from "tiny" to "huge" and are meant to approximately match the player's play area. The player places the game's multitool on the ship's ignition and pulls the trigger, which turns the tracked controller into what UploadVR called "a free motion joystick": tilting the controller forward moves the ship forward, tilting it right moves it right, and a holographic minimap helps with navigation. Digital Trends summarized the result as players connecting their in-game tool to the ship's drive train and piloting it one-handed while walking around it with room-scale tracking.

Other games apply the idea to enclosed vehicles. In IronWolf VR by Ionized Studios, the player crews a submarine whose controls are physical wheels, levers and switches modelled on their real counterparts. The studio states that every control within each compartment can be reached without teleporting in the minimum room-scale space of 2 m x 1.5 m, and that teleports between compartments are handled by physical controls such as operating a door or pulling open a hatch.

History

In its February 2016 overview of VR locomotion methods, Road to VR listed "Vehicles" (seated cockpits in racing and flight games) and "Roomscale Vehicles" as separate methods, summarizing the second as: "when you have a room big enough for a boat, why not ... have a boat?" The article named Stress Level Zero's Hover Junkers as the example and noted that such vehicles were still underused in VR games.

Hover Junkers was released on Steam on 5 April 2016 as a multiplayer shooter for tracked controllers only. It launched on the HTC Vive and later came to the Oculus Rift once Oculus Touch controllers were available. Road to VR wrote in 2018 that the game had "pioneered a unique locomotion scheme" for moving around its desert maps "quickly and comfortably"; that year Stress Level Zero added a single-player campaign, Junk Road. The game's director and designer, Alex Knoll, described its approach to Digital Trends as the "moving platform" form of VR locomotion, a blend of real-world walking and artificial movement intended to allow both comfort and large movement through open areas.

IronWolf VR was in development by November 2016, when KitGuru reported that Ionized Studios had chosen the enclosed space of a submarine so that the game could fit a small play area. Steam lists the game's release date as 12 April 2022. In December 2020, Stress Level Zero's later game Boneworks received a free update (version 1.6) with a sandbox map themed on Hover Junkers in which players can drive its hover vehicles again and seize them from enemies.

Examples

Title	Developer	Vehicle	How the vehicle is controlled	Play area notes
Hover Junkers	Stress Level Zero	Hovering ship	Multitool placed on the ignition turns the controller into a tilt joystick	17 ships from "tiny" to "huge" to fit different play areas
IronWolf VR	Ionized Studios	Submarine	Physically based wheels, levers and switches	Designed for a minimum room-scale space of 2 m x 1.5 m

Problems

The method does not remove the basic room-scale constraint: the walkable part of the vehicle can be no larger than the user's physical play area, which is why Hover Junkers offers ships in many sizes and IronWolf VR divides its submarine into compartments. The vehicle's movement is also a form of artificial locomotion, so the visual motion the user sees while the vehicle travels is not matched by physical movement. Digital Trends noted that artificial movement brings difficulties with nausea for less experienced users, and that Stress Level Zero took care over comfort because many Hover Junkers players would be new to VR at the HTC Vive's launch. The Locomotion Vault database rates the technique's nausea as "medium".

Vehicle interiors have also been tested as a comfort aid in research. Luks and Liarokapis tested a frame of reference "in form of a cockpit and a radial" against a visible path of waypoints, with 15 participants in each of four groups; they reported a pattern in the data favouring the visible path over the frame of reference as a method against motion sickness. A 2023 systematic review of cybersickness-reduction strategies by Ang and Quarles in Frontiers in Virtual Reality cites the hypothesis from that work that virtual vehicles could serve as effective rest frames, and summarizes the study as examining a virtual cockpit added to a low-altitude flying simulation.

Solutions

Developers have used several design choices to make room-scale vehicles comfortable:

Technique	Example	Description
Frame in the peripheral view	Hover Junkers	Knoll told Digital Trends that "filling the users peripheral view with a 'Frame' helps quite a bit"
No vehicle rotation	Hover Junkers	Knoll said that making sure the ships did not rotate was a major step toward a comfortable experience
Constant speed and visual references	Hover Junkers	UploadVR's preview reported "a constant speed and plenty of frames of reference around you so the movement never feels jarring or nauseating"
Vehicle sized to the play area	Hover Junkers	Players choose a ship that approximately matches their play area
Turning the user at doorways	IronWolf VR	Each time the player passes through a door, the view is rotated 180 degrees through a fade to black, so the player faces into the new compartment with more physical room to move
Physical controls for transitions	IronWolf VR	Teleports between compartments are handled by physical controls such as operating a door or pulling open a hatch

Road to VR's 2016 overview made a related point about seated vehicles: a cockpit gives a "solid feature in your foreground", and a vehicle lets the user keep a natural sitting position that matches the virtual pose.

Classification

Locomotion Vault, a database and visualization of more than 100 VR locomotion techniques from academia and industry presented by Massimiliano Di Luca, Hasti Seifi, Simon Egan and Mar Gonzalez-Franco at the ACM CHI 2021 conference, lists "Room-scale Vehicle" as a technique in its "vehicle" group. Its entry records the following attribute values:

Attribute	Locomotion Vault value
Group	Vehicle
Posture	Any
Nausea	Medium
Vection	Low
Spatial awareness	High
Embodiment	High
Speed	High
Energy	Low
Accessibility	Medium
Ease of learning	High
Suitability for large virtual environments	High
Movement beyond the ground	Yes

The entry's example list names EVE: Valkyrie, Hover Junkers, Project CARS, IronWolf VR and Vox Machinae, among others. The list includes Project CARS and EVE: Valkyrie, which Road to VR cited as examples of seated cockpit play, and the database keeps a separate seated "Vehicle VR" technique, described as moving by controlling a vehicle that surrounds the user in the form of a cockpit, which also lists EVE: Valkyrie as an example.

See also

• Cockpit / Vehicle
• Room-scale VR
• Artificial locomotion
• Teleportation
• Redirected walking
• VR sickness