This is a mod for Portal 1. Includes new maps, storyline, a whole new Portal experience. After you play the game, every other mod will look simple, balanced and average. Lost in Aperture try to show, that the portal universe can be way bigger, and a lot more, then just solving puzzles.
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Community-Made Mod

This community-made mod requires that you own Portal

Click here to learn more about mods on Steam.

Install Portal: Lost in Aperture

Free To Play
 

About This Game

The game

Phe Game: Portal: Lost In Aperture is a mod for Portal. It features new levels and a new story. The focus isn't on difficult puzzles, but more on capturing the Aperture Science atmosphere. It shows Aperture from a new perspective. It may not be fully lore-accurate, but it tells a simple story. The game takes place in Eastern European Aperture laboratory, so it will feel a bit different from its original, Western counterparts.

The game is semi-open world, so you can explore the map, and get to the ending without playing the same levels over and over again.  The game offers 20+ levels, but to get to the ending, you only need to play 9-10 levels.

But the main goal of the game is not just to play portal like levels. Your main goal is to find and explore alternative routes. While the main routes look like normal/balanced levels, the alternative ones are the opposite. They are crazy, strange, suprising and unbalanced. There are alternative routes where you are in a castle, backrooms, military base and other places what you would not expect.
After you play the game, every other mod will look simple, balanced and average. Lost in Aperture try to show, that the portal universe can be way bigger, and a lot more, then just solving puzzles.

The future of the game

I plan to add more levels, improve the game in general and fix bugs as needed. There is usally a bigger update in every month.

You can always give feedback on Steam or in email: piggreen99@gmail.com

Mature Content Description

The developers describe the content like this:

The environment can be scary (similar to Portal), and when the player gets shot, blood splatter will appear.

System Requirements

Windows
SteamOS + Linux
    Minimum:
    • OS: Windows® 10 (32/64 bit)
    • Processor: 1.7 GHz proceszor
    • Memory: 4 GB RAM
    • DirectX: Version 8.1
    • Storage: 15 GB available space
    • VR Support: no VR device support
    Recommended:
    • OS: Windows® 10 (32/64 bit)
    • Processor: 3.0 GHz proceszor or faster
    • Memory: 8 GB RAM
    • DirectX: Version 9.0
    • Storage: 15 GB available space
    • VR Support: no VR device support
    Minimum:
    • Processor: 1.7 GHz proceszor
    • Storage: 15 GB available space
    • VR Support: no VR device support
    • Additional Notes: If it does not run, copy to smaller "lostinaperture" folder, and put it into the sourcemods folder, then play it as a sourcemod!
    Recommended:
    • Processor: 3.0 GHz proceszor or faster
    • Storage: 15 GB available space
    • VR Support: no VR device support
    • Additional Notes: If it does not run, copy to smaller "lostinaperture" folder, and put it into the sourcemods folder, then play it as a sourcemod!

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