The Binding of Isaac: Rebirth is called a "remake" but it also bungs in an expansion's worth of new stuff for the roguelike-like shooty dungeon crawler. Developers Nicalis are working with creator Edmund Mcmillen to add loads of new items, characters, rooms, enemies, and bosses, an extra chapter, local co-op, and other odds and ends. McMillen gabs about changes and additions on his devblog, but looks at it in motion were limited to the occasional animated gif. Now the game's finally in good enough shape that he's shared a "first look" at a beta build.
"We are still tweaking things visually and the game is missing a few sound effects but this is basically what you will be getting on release," McMillen explained. "I wish YouTube made it look as crisp as it does when you play.. oh well."
Rebirth is a full-on remake, rebuilt in a new engine to escape that nasty old limiting Flash thing. Some of the new items and ideas are things that wouldn't work or be possible in the old version. The art's fully redrawn too, shooting for a 16-bit SNES-era style rather than Edmund's old hand-drawn way.
The Binding of Isaac: Rebirth is due some time later this year. Here, look: