opensweeper is a Minesweeper clone with classic, familiar controls, rules, layout, and visuals: three difficulty modes, first-click safety, chord reveals, the face button, and a mine counter that goes negative if you over-flag. It should feel familiar to anyone who has played the original. Bare-bones but complete, and runs easily on Windows, Mac, and Linux, plus directly in the browser via WebAssembly.
No roadmap, no users, nobody to ship it to. I wanted the whole thing rebuilt in plain C, behaving exactly like the version I grew up clicking through. It does, so I left it there.
If you want to save a run, opensweeper can record your gameplay directly to an MP4. Toggle it from the menu before you start. (Recording is desktop-only; the web build leaves it out.)
Controls
| Input | Action |
|---|---|
| Left click | Reveal cell |
| Right click | Flag / unflag |
| Middle click, Left + Right | Chord reveal |
| Arrow keys / WASD | Move cursor |
| Space / Enter | Reveal cell |
| F | Flag cell |
| Escape | Return to menu |
| Alt+Enter | Toggle fullscreen |
In the browser (WebAssembly)
The same C is compiled to WebAssembly with Emscripten, so the browser version is the actual game, not a separate port — same rules, same feel, same code. You can play it here — nothing to install.
Download
Prebuilt binaries for Linux, Mac, and Windows are linked below, plus a WebAssembly bundle. Or just play it in your browser. Source is available on GitHub. See the README for full project information.