Star Trail
Free · play online in your browser, no download
Get a small ship and four crew members home across a procedurally generated galaxy, one jump at a time. The developer says Claude Code wrote all of the code.
Official site startrail.greyden.games, verified Nov 3, 2026. Linked from the developer's own Reddit post on r/aigamedev and from the Greyden Games site and blog posts.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — official siteBrowserReleasedFree
Runs in a desktop or mobile browser. No download.
Browser (no download) · Mobile · Official link verified Nov 3, 2026.
About Star Trail
Star Trail is a free pixel-art space survival game for the browser, which its developer describes as The Oregon Trail in space. You captain a small ship a very long way from home and have to get back across three sections of space, 8×8, 16×16 and 32×32 squares, one jump at a time; each section ends at a gate, and the last gate is home. Every square on the star chart holds something: pirates, a derelict worth stripping for scrap, a trading outpost, a settlement looking for crew or a black hole that may throw you somewhere else. You manage fuel, hull, food, scrap and morale. Nebulae hide you from pirates but burn double fuel, asteroid belts block the way and lawless space pays if you survive it. At the start you meet eight hopefuls and take four; each has two visible traits with an upside and a downside, and some keep secrets. The crew form friendships, rivalries and grudges, remember the calls you make, can ask for detours home, and a crew member who resents you may start sabotaging the ship, with the others not always blaming the right person. Every galaxy is generated from a seed, death is permanent, and the current journey saves on your device as you go. The music is composed as you play. The developer, a software engineer posting on Reddit as u/Dignified_Cyclops, says the game was completely vibe coded: Claude Code wrote the TypeScript while the developer directed it in plain English and played each result. The ships come from a port of the open-source SpaceshipGenerator, and the planets and skies from Deep-Fold's PixelPlanets and PixelSpace. Designed for phones first, in portrait, it plays free in mobile and desktop browsers with no download or account. The site credits Greyden Scott and Greyden Games.
How it was built
Partially verifiedIn the launch post on the Greyden Games blog (5 Oct 2026) the developer writes: “I didn't write the code for Star Trail. I vibe coded all of it.” and “I directed the game in plain English with Claude Code, an AI coding agent, and it wrote the code. I said what I wanted, played the result, and said what felt wrong. I made the decisions about what the game should be. I didn't type the TypeScript.” Per the post, between the first commit on the morning of 3 Oct and the version of the evening of 5 Oct there were 92 commits, about 22,600 lines of TypeScript plus about 4,700 lines of tests (378 automated tests), 25 encounters in space and 120 crew events. A CLAUDE.md file in the repository holds the project's conventions and architecture and is read first by every session; a content validator checks every encounter and event, bots play thousands of simulated runs to measure balance, and on the third day the developer asked for a code review and worked through it. The follow-up post (6 Oct 2026) counts 26 more commits and nearly 14,000 new lines of game code in the next day, and repeats that the game was built “without writing a line of code myself. I directed it, and an AI agent (Claude Code) did the typing.”
- DeveloperReddit post on r/aigamedev (5 Oct 2026, UTC): “I whipped up a quick game in a day, completely vibe coded.” The developer adds that the art uses open-source and MIT-licensed tools and assets, “But everything else is pure Claude, with me directing it.” In a reply the developer says the audio “was all Claude”. — Reddit (u/Dignified_Cyclops)
- DeveloperFollow-up post (6 Oct 2026): “which I built in three days without writing a line of code myself. I directed it, and an AI agent (Claude Code) did the typing.” — Greyden Games
TypeScript on Vite with three.js, locked to portrait for phones and scaled from one reference phone layout so no device scrolls. The game rules are pure and deterministic, so the same seed and the same choices always give the same run, and the developer says the rules are kept separate from the rendering with hard limits on file and function size. Two open-source generators were ported: a SpaceshipGenerator port builds every ship from a seed (credited as CC BY 3.0), and Deep-Fold's PixelPlanets and PixelSpace draw the planets and skies; further asset packs are credited on the in-game Credits screen. Chiptune sound effects and generative music are synthesised in the browser with no audio files. The crew's opinions, relationships and the “storyteller” that paces events are rules applied to whoever is aboard, not an AI service; the game script calls no AI services (observed). After the first update the developer says the best bot gets home a little under half the time (about 47%).
- Engine / framework
- Three.js
- Languages
- TypeScript
- Team size
- 1 (solo)Developer ReportedGreyden Games
- Initial build time
- About three days (first commit 3 Oct 2026, playable version 5 Oct 2026)Developer ReportedGreyden Games
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- ~100% of shipped codeDeveloper ReportedGreyden Games
“I didn't write the code for Star Trail. I vibe coded all of it.”- Introducing Star Trail (Greyden Games)
- Star Trail, one day later: food, faces, and a crew you choose (Greyden Games)
- After being accused several times of “vibe coding” my previous games, I decided to actually try it (r/aigamedev)
Verification notes: AI use from the developer's two posts on the Greyden Games blog (5 and 6 Oct 2026) and the developer's Reddit post by u/Dignified_Cyclops on r/aigamedev (5 Oct 2026, 02:19 UTC) with the developer's replies, read from the Arctic Shift Reddit archive on 8 Nov 2026; the post links the game. Gameplay, platform, saving and credits from the game's home page and its structured data, which name Greyden Scott as author and Greyden Games as publisher; all re-read on 8 Nov 2026. The Reddit account is linked to Greyden Scott only by the post itself, which presents the game as the poster's own. The 100% AI code share is the developer's statement (“I vibe coded all of it”, “I didn't type the TypeScript”). The developer says the original idea came from the overworld maps of Fallout 1 and 2. The Oregon Trail is named by the developer as the inspiration; the game uses no material from it, so no IP notice is attached. The game's script (about 2 MB) was checked and contains no AI service addresses. The home page FAQ says iPhone and Android apps are on the way; the blog says iOS and Android test builds are produced on every push. The repository is not public. The Reddit post had a score of 10 (observed; not a metric). The game was not played.
Development history
First commit, per the developer.
DeveloperGreyden GamesReleased free in the browser and announced on the Greyden Games blog and on r/aigamedev as a game vibe coded with Claude Code.
First update: food and rations, crew picked from eight candidates, two visible traits each, and 63 encounters and 232 crew events in all.
DeveloperGreyden Games
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
Browser (official site)
Free in mobile and desktop browsers with no download or account; made for phones in portrait. The game itself is at /play, and the current journey saves on the device.
No public metrics recorded for this listing.
Not publicly available: Concurrent players (site), Monthly revenue, Gross revenue.
Sales & revenue (all platforms)
Browser game — there are no downloads to count.
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| Introducing Star Trail Greyden Games | Devlog | Oct 5, 2026 | Nov 3, 2026 |
| Star Trail, one day later: food, faces, and a crew you choose Greyden Games | Devlog | Oct 6, 2026 | Nov 3, 2026 |
| After being accused several times of “vibe coding” my previous games, I decided to actually try it (r/aigamedev) Reddit (u/Dignified_Cyclops) | Social post | Oct 5, 2026 | Nov 3, 2026 |
| Star Trail – Oregon Trail-style space survival game Greyden Games | Official site | Not confirmed | Nov 3, 2026 |
| Official game page (language check) Greyden Games | Official site | Not confirmed | Nov 3, 2026 |
- Build time
- The Reddit post says the developer made the game “in a day”; the blog says the first commit landed on 3 Oct and the launch version is from 5 Oct, and the follow-up post says it was built “in three days”. The record uses the blog's three days. (Reddit (u/Dignified_Cyclops), Greyden Games, Greyden Games)
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