The query for a is somewhat ambiguous and could refer to a few different things:
The mention of a .rar file suggests you are looking for documentation related to a specific downloaded package, which could range from game assets to software source code. Linelight.v1.1.rar
Research into "minimalist UI" and "intuitive level design" often cites Linelight as a primary example of teaching complex logic through environmental cues alone. The query for a is somewhat ambiguous and