I've been busy doing completely invisible things like storyboarding and playing around with balancing the battles, so there's not a huge amount to show for progress.

I have, however, extended the battle engine a bit; naturally I'll add as many of these features as reasonable into the core engine after I'm done. The most significant additions are demonstrated in the below video:

Chronicle of Mars

Elevation TileMap Rotation

Alpha 7 of my CC-licensed RPG battle engine for Ren'Py has now been released, adding elevation to grid battlefields, tile maps and support for loading tile-based battlefields - complete with height info - out of external files, and a selection of screens to aid in the creation of RPGs.

Elevation Preview