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Most people nowadays use a game engine when developing video games as it takes a huge part of the development out of the hands of developer for completely free, as well as simplifying the process of updating the game in the future. Game engines are important as they provide a super easy way to develop prototypes that can quickly be iterated upon. These prototypes are then able to be reworked in an efficient manner thanks to the built in core functionality of many game engines, such as rendering, collision detection, support for sounds, animation, scripting, and more! Most modern game engines also support a storefront commonly known as an "asset store" that can provide ready-made pieces that a developer can drag and drop into their own projects to edit or serve as a placeholder. The inclusion of an asset store also fosters a community around the engine as every asset is someone's creation - something that needs to be maintained by the owner, therefore creating a level of attachment to the engine itself.