This is a free, community-made modification for Portal 2, released in 2021 for PC (Microsoft Windows). It expands upon the established mechanics of its parent game by introducing a significant new element: a third portal. This addition fundamentally alters how players interact with the game's environments and puzzles, offering a fresh challenge for those familiar with the original experience.

Core Gameplay Mechanics

The central innovation of this modification lies in the introduction of a third portal. While the original game revolved around creating two interconnected portals to navigate environments, this mod allows for the placement of a third, enabling travel between two distinct timelines. This mechanic requires players to think in four dimensions, considering not only spatial relationships but also temporal ones.

The Four-Dimensional Puzzle Experience

The core appeal of this mod stems from its unique puzzle design, which leverages the concept of multiple timelines. Players will encounter 25 entirely new puzzles that demand a shift in perspective, forcing them to consider how actions in one timeline might affect another. This creates a complex yet rewarding problem-solving loop that builds upon the physics-based puzzles of the original game.

Navigating Timelines

Successfully solving the puzzles involves understanding how to manipulate objects and navigate through these different temporal states. The introduction of the third portal isn't just a visual change; it's a fundamental shift in the rules of engagement, requiring players to develop new strategies and approaches to overcome the challenges presented.

Setting and Atmosphere

While the mod utilizes the existing environments and aesthetic of its parent game, the introduction of the timeline mechanic imbues these familiar spaces with a new sense of complexity and mystery. The atmosphere remains consistent with the sterile, scientific, and often unsettling tone established by the original, but the temporal element adds an extra layer to the player's isolation and the enigmatic nature of the testing chambers.

Content and Value Proposition

As a free modification, it offers a substantial amount of new content for fans of the puzzle genre. The 25 new puzzles provide a significant challenge, designed to test the limits of players' spatial and temporal reasoning. The value proposition lies in experiencing a novel twist on a beloved gameplay formula, delivered through a series of intricately designed challenges.