Hello! I'm Tom. I'm a game designer, writer, and programmer on Gunpoint, Heat Signature, and Tactical Breach Wizards. Here's some more info on all the games I've worked on, here are the videos I make on YouTube, and here are two short stories I wrote for the Machine of Death collections.
By me. Uses Adaptive Images by Matt Wilcox.
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.