Open Junction
PlayablePC · 1992 · Simulation · Decompilation
Build connecting rails and dispatch trains across a new six-station network.
Controls
| Choose Go in the main menu to start | |
| Space — switch between management and construction | |
| Construction: hover over a buildable diamond, left-click to cycle rail shapes, then right-click to place the selected rail | |
| Management: left-click switches and signals to route trains | |
| 1, 2, 3 — set simulation speed | |
| Click the in-game menu button to pause, Save, or return to the menu |
About this build
Open Junction pairs the reSL reconstruction of ShortLine with independently authored CC0 screens, fonts, vehicles, rails, buttons, cursor, colors, and scenario data. Upstream says original-author permission was not obtained; its GPL notice and our replacement data do not resolve that code-provenance gap. The browser package excludes the upstream game-data directory and original speaker sequences. Private silent browser tests completed multiple naturally assigned deliveries, including later-station journeys after player-built rails and switch operation. The published build has no private trace hooks. Its continuous 1800-to-2000 progression and full repeat-level campaign remain unverified.
- Built from
- reSL
- Type
- Decompilation
- Game files
- No original ShortLine files needed. The included replacement package supplies its own graphics, text, six-station board, and silent audio backend.
- Code licence
- GPL-3.0 reconstruction declaration; original-code permission not obtained per upstream
- Assets
- CC0-1.0 independently authored Open Junction replacement data
- Source
- konovalov-aleks/reSL ↗
What has been tested
The pinned replacement build passed silent private gameplay checks for rail construction, switch input, naturally assigned completed deliveries, an isolated six-station route, and in-game Save/Archive. The exact immutable uninstrumented production package passed Go input, a natural delivery with the completed-train counter advancing, local Save, export/delete/import, and Archive/Go restoration in isolated headless Edge with audio muted. The full repeat-level campaign and uninterrupted 1800-to-2000 progression remain unverified.
Last tested 2026-09-27 in Headless Chromium on Linux (private CI), Headless Microsoft Edge on Windows (production). Full playthrough: not verified. How games are tested.
See the source classification and permission-scope review. Gameplay and replacement-content evidence are separate.
Known limitations
- Upstream explicitly reports no original-author permission. Contributor GPL and CC0 replacement assets do not clear inherited game-code rights; this existing entry is not a cleared new permissive-code addition.
- A train needs its departure and destination switches set before it reaches each junction; a missed turn can leave it circling the board.
- The complete 1800-to-2000 period, repeat-level campaign, and long-term economic balance have not been verified.
- This build has a null audio backend. Audible sound has not been tested or enabled.
Saves
Use the in-game Pause menu’s Save action, then Archive and Go from the main menu to resume. Saves stay in this browser. Use Export saves in the player toolbar for a portable backup before clearing browser data; production export/delete/import restoration passed.
Build and corresponding source
Compiled with emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 6.0.1 (25e4e8d6550d392ba9e0c2936bce7cf41ee47cc0) from revision 470cca330ee9abcf6173c843f4c89686c0c7e525.
