“I’m shaking, it’s crazy.”
An expo attendee, right after a run. Asked how it compared with other sims: “Like nothing else.”
Uses · Active gaming
Play that does not
keep you still.
A screen asks for your thumbs. A platform moving through six axes asks for the rest of you — you brace against the surge, you hold position through the heave. That effort is not a feature we added. It is what happens when the motion is real. The Portal Development Kit (PDK) is a six-axis development kit for developers and integrators building active-gaming experiences.
Development Kit: early-access hardware, software in active development.
Supplied for development and evaluation use (Terms, Section 8.1). A paid public ride is an amusement device where local law says so — licensing, inspection, insurance, operator training — and the Terms do not cover those duties (Section 8.2).
Why it is physical
Your core does not know
it is a game.
When the platform accelerates, something has to hold you in place, and that something is you. Six axes means the direction keeps changing, so the bracing is continuous rather than a single sustained push. Some riders step off out of breath.
What people said
Reactions from the expo floor.
These are riders on camera at SimRacing Expo Dortmund and Sim Gaming Expo, Schaumburg, Chicago, in 2025, quoted as they said it. Each consented to being recorded and quoted; nobody was paid and nobody was given anything. The films and their caption tracks are on See it move. They are testimony about an experience, not a claim about an outcome.
“You feel everything about it.”
An expo attendee, asked what they felt. Asked how immersive it was, one to ten: “Yeah, 10.”
“That was a workout… really good bit of kit.”
Luke Crane, straight after his run.
More of these were recorded on camera at the same shows.
For a venue
Before any venue use.
Commercial operation — a venue, an attraction, paid rides — needs a Commercial Operator Agreement under the Development Kit Evaluation Agreement, Section 8. That agreement is not available yet. Tell us what you are planning; we may decline any request (Section 8.4).
Footprint and power
1.00 × 1.00 m for the PDK platform, 1.57 m in diameter with the extension feet. Standard mains from 100 to 290 V. No three-phase supply. The floor and mounting requirements are the rated limits in the Safety Manual.
Duty cycle
Static weight is carried pneumatically rather than by the motors, so the motors move you rather than hold you up.
Throughput
Riders get on and off without a calibration step, because the encoders are absolute and the platform knows its pose at power-on.
Keep reading
Entertainment
The same platform where the question is return per square meter.
XR and VR
When there is a headset involved, timing stops being a nicety.
Talk to us
For a question a page cannot answer.
Every build starts with this platform. The PDK + ARK Ecosystem finishes it — racing chassis, wheelbase, wheel, load-cell pedals and button box, development-kit price $8,499.99.
Order a development kitAll four builds ›
Built to allocation · ready to ship an estimated 3–6 months from order confirmation; delays of up to 12 months are possible