Orbital Survival is a game developed by PlayCanvas user el-pepi, shows different Physics concepts like orbit, and inertia. In this game, your character is supposed to shoot down all alien invaders, but take note: your attacks can take you out as well.
Once you fire a shot, it will orbit around the planet until it hits you or your target. This means careful shooting or you end up dying from friendly fire. One of the amazing concept of the game is how the planet rotates as your character moves across it.
It’s a very quick game intended to show how the law of inertia and orbit is supposed to look in shooting games.