Navigating various test chambers using the portal gun, they learn how to use time portals to navigate between a version of Aperture's laboratories in the past and a dilapidated and broken version twenty years in the future, which the facility's artificial intelligence overseer states has been damaged as a visual aid. The player assumes the role of test subject 4509 in the Aperture Science Enrichment Center, who is awoken from stasis to take part in a 'Time Travel Testing Course'. Portal Reloaded is intended to take place in the same universe as the official Portal games according to the developer, the narrative is designed to not interfere with that of the original series. See also: Portal (series) § Setting and characters It is intended for 'veteran players', being more challenging than the official games. The developer has stated that the mod is intended as a smaller-scale complement to the original game, in contrast to other modifications such as Portal Stories: Mel. Unlike Portal 2, which it is based on, the game does not feature a co-op mode. Therefore, careful usage of puzzle elements allows the player to have a duplicate of any puzzle element that can be brought through the time portal. While past objects cannot be taken through the time portal into the future, future variants of an object can be brought into the past.

However, objects in the future can be moved independently of their past equivalents. If an object – such as a cube or a conventional portal – is manipulated in the past, it moves in the future chamber as well, causing its previous copy to fizzle. The game also involves solving puzzles with other testing elements introduced in the official series, such as buttons, cubes, lasers, and light bridges. Unique to the mod is a third 'time portal', allowing the player to traverse between the same point in two alternate versions of the test chamber, located respectively in the past and the future. Players are equipped with a 'portal gun', allowing them to create holes that connect disparate areas in three-dimensional space. In this example, the player can either use the blue portal to exit from the orange portal, or enter the green 'time portal' to access the future chamber, where the other portals are positioned differently.Īs with the official games in the Portal franchise, Portal Reloaded takes place in the Aperture Science facility, where the player character solves a variety of puzzles in test chambers.

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