Billy Frontier

About

Billy Frontier is a Wild West action game originally created by Pangea Software in 2003. This WebAssembly port uses Emscripten and SDL3 to run natively in modern browsers.

Controls

• Mouse / Aim: Look around / aim
• Left Click: Shoot
• Right Click / Ctrl: Duck
• Space / Alt: Jump / Continue
• Arrow Keys / WASD: Navigate menus / move
• Escape: Pause

Level Editor Integration

The game supports direct level launch for use with external level editors. Append a URL hash to skip the title screen and jump straight to a level:

billyfrontier.html#level=1

Supported area numbers (see controls on the game page):

• 0 – Town Duel 1   1 – Town Shootout   2 – Town Duel 2
• 3 – Town Stampede   4 – Town Duel 3   5 – Target Practice 1
• 6 – Swamp Duel 1   7 – Swamp Shootout   8 – Swamp Duel 2
• 9 – Swamp Stampede   10 – Swamp Duel 3   11 – Target Practice 2

You can also supply a custom terrain file override via hash parameter:

billyfrontier.html#level=1&terrain=/Data/Terrain/custom.ter

Or use the on-screen file picker to upload a custom .ter file at runtime.

JavaScript API (for level editors)

Once the Module is loaded, the following functions are available:

• Module.ccall('BF_SetDirectLaunchLevel', null, ['number'], [area]) – skip to area
• Module.ccall('BF_SetFenceCollision', null, ['number'], [1]) – enable fence collisions
• Module.ccall('BF_SetFenceCollision', null, ['number'], [0]) – disable fence collisions
• Module.FS.writeFile('Data/Terrain/custom.ter', data) then Module.ccall('BF_SetTerrainFile', null, ['string'], [':Terrain:custom.ter']) – upload and activate a custom terrain file