Hello! I'm Tom. I designed a game called Gunpoint, about rewiring things and punching people, and now I'm working on a new one called Heat Signature, about sneaking aboard randomly generated spaceships. Here's some more info on all the games I've worked on, here's the podcast I do, here are the videos I make on YouTube, here are some of the articles I wrote for PC Gamer, and here are two short stories I wrote for the Machine of Death collections.
In a platform game, the screen is usually divided between solid land and empty space. The empty space is the fun bit – you can jump around in it, fight enemies, solve puzzles. Usually nothing very interesting happens inside the solid ground beneath your feet.
In Ibb and Obb, the solid ground becomes the empty space for another platformer, one that takes place upside-down.