Halfstreet

A gothic text adventure. Second person, present tense, sparse — never explains.

Style anchors: Le Fanu's Carmilla, Shirley Jackson's The Haunting of Hill House, M.R. James's ghost stories.

Played at halfstreet.io.

Stack

  • Astro static site
  • TypeScript engine — pure (no DOM, Date, Math.random, or console)
  • World content authored in markdown (rooms, items, encounters, endings) under src/world/
  • Vitest for tests

Development

npm install
npm test          # engine + world tests
npm run dev       # local dev server
npm run build     # type-check + production build

Releases

The footer build number comes from Woodpecker's pipeline number and increments on each CI build. The package version is an intentional release label.

Use one of these from a clean worktree when you are ready to cut a release:

npm run release:patch  # fixes, typo corrections, small polish
npm run release:minor  # meaningful playable additions or mechanics
npm run release:major  # disruptive changes after 1.0.0
git push --follow-tags

Each release script updates package.json and package-lock.json, creates a release commit, and tags it.

Layout

  • src/engine/ — parser, dispatcher, encounter logic
  • src/ui/ — terminal renderer, theme, chips
  • src/world/ — markdown content (rooms, items, encounters, endings)
  • src/pages/index.astro — entry page

Design docs

  • docs/superpowers/specs/halfstreet-bible.md — content bible (canonical world)
  • docs/superpowers/specs/2026-05-08-mystery-text-adventure-design.md — engine/UI architecture
  • docs/superpowers/specs/halfstreet-followon-notes.md — pending engine work before authoring more rooms
  • docs/superpowers/specs/2026-05-09-mystery-markdown-migration-design.md — markdown content migration design
  • docs/superpowers/plans/2026-05-09-mystery-markdown-migration.md — migration plan that was executed

License

GPL-3.0-or-later. See LICENSE.

S
Description
An old-school text adventure straight out of 1985.
https://halfstreet.io
Readme GPL-3.0 3.3 MiB
Languages
TypeScript 92.3%
CSS 4.5%
Astro 3.1%