RelativityX

What it is

RelativityX is a space flight simulation by cng13m, played in the browser. You pilot a ship close to the speed of light from the keyboard, switching between six speed levels, while two clocks run on screen, one for Earth and one for the ship. You can also look up data on the planets along the way. The game shows the ship, the solar system and your route. The faster you go, the further the two clocks drift apart, and watching that gap change is the point of the game. The AI game catalog GamesByAI records it as made with AI, and the author listed Codex as the tool on the Vibe Jam 2026 entry form.

Who it's for: Anyone curious about space and how time behaves in relativity who wants to fly the trip themselves.

Before you start: The catalog lists it as a browser game and doesn't mention mobile support. It's single-player, and the author doesn't say whether scores are uploaded. The author doesn't say whether it's free. The page is in English.

Based on the game page and the public listing in the AI game catalog GamesByAI. Not tested by AI Inspiration World.