Physics-based iOS game

In 2018 my friend and I made Level 9, an iOS game programmed in Swift. The gimmick was that we applied the actual physics behind gravity and movement in space to every object in the game, including the player. While at first this just made your ship quite difficult to control, once you got the hang of things it opened up some unique possibilities and puzzles. Upon playing the first challenge was to interact with (and survive in) the world with only one tool at your disposal—your own gravity. Notable technical features of this game included the extensive physics simulation and the AI for the enemies, which needed to understand orbital dynamics in order to avoid flying into things.