Simulation · Educational · made with GPT
RelativityX
Fly a near-light-speed spacecraft through the solar system and watch time stretch.
About RelativityX
RelativityX puts you at the controls of a relativistic spacecraft and lets you watch time stretch. You fly through the solar system from planet to planet, and the trip ends at a black-hole portal that carries the ship out into the Vibe Jam webring.
In the creator's telling, the project grew out of seeing Interstellar for the first time and wanting Einstein's relativity to feel understandable and emotional. It was built in Three.js with Codex.
Time dilation is the point. As the ship nears the speed of light, time runs differently for the traveler, and you see the effect firsthand instead of reading about it in a textbook. Clicking a world brings up short facts about it, a light educational layer on the way.
How it was made
Most of the code was written by AI. Source: Vibe Jam 2026 submission form.
Evidence: the creator's own account.
- AI provider
- OpenAI
- AI tools
- Codex
- Engine
- Three.js
- Genre
Simulation, 
Educational- Players
- Single player
Questions about RelativityX
Is RelativityX free to play?
Yes. RelativityX runs in your web browser at no cost, with no download or account needed.
Which AI was used to make RelativityX?
RelativityX was made with Codex and GPT. Most of the code was written by AI, according to the Vibe Jam 2026 submission form.
Can I play RelativityX on my phone?
RelativityX is built for desktop browsers. It may not work well on a phone.
Who made RelativityX?
RelativityX was made by cng13m. See their profile on GamesByAI for their other games.
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