It is coded in Blitz basic. I think we could easily combine graphics from more people, the only restriction is we need to keep the same palette. At this moment we will create a demo level consisting few NPCs and need to draw few interiors (for example Hero's house). Graphics consists of tiles 16x16 pixels.
This is just a picture (not a level screenshot), that I created of already existing tiles:
Nothing is definitive, yet, so everything could be changed. Even the pallette and sprites. We have to deicide what will we do with that black background. Graham suggests some copper, similar to Downfall ECS one. This will need to dedicate one color from the palette to copper effect, but it could be the solution.