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Games where you have to manage resources in order to complete objectives. 

Stripping back the unnecessary and focusing on the essential. Minimalist games often rely on simple graphics, basic colors, and straightforward mechanics to convey their core gameplay experience. They often prioritize gameplay and user interaction over complex narratives or detailed graphics, providing a refined and uncluttered experience. They may feature limited interfaces, reduced controls, or a focus on a single mechanic or concept.

Focused on using its text, moreso than its visuals or audio, to tell the bulk of its story/plot. (Still can have great audio and visuals, though!)

Unity is a game engine for 2D, 3D, AR and more

Resources for building and relating to User Interfaces, how the user interacts with your program