Today I announce Death Mask Prototype at least for Desktop (Windows, OS X, Linux)
I can make it available for web if I would solve resource loading problems (assimp emscripten support, textures loading)
In this prototype you will be able to run around and move between levels. I will demonstrate simpliest level generation, controls handling, 3D rendering of complex models by FSGL.
I hope I can release prototype in this year.