HELIX Docs
CLI & AI toolsCommand reference

helix dev

Serve a BUILT world under a SIMULATED HELIX shell — offline, no login, no backend.

CLI version 0.1.27-helix3.551. Run helix dev --help for the text your installed build prints.

helix dev

Serve a BUILT world under a SIMULATED HELIX shell — offline, no login, no backend. Purchases, saves, entitlements and achievements are answered locally, with a debug menu that forces them to FAIL

helix dev [options] [dir]
ArgumentRequiredDescription
dirnothe world PROJECT dir — its built bundle is <dir>/dist
OptionDescription
--port <n>shell port; the world is served on the next one (default 5190)
--resetclear this world's stored simulated state before starting
--freshsimulate a NEW player — the other simulated players keep their state

On this page