Corridor 7: Alien Invasion is a classic first-person shooter that drops you into a secret research facility overrun by hostile extraterrestrial creatures. If you enjoy retro shooters with tense atmospheres and maze-like level design, this free download gives you a direct way to experience the game on modern Windows systems. The package is a GOG installer, so you get a straightforward setup process and a desktop shortcut when you finish.
Technical Specifications
| Attribute | Details |
|---|---|
| Version | Estimated current GOG build (version number not specified) |
| File Size | 288.72 MB |
| Operating System | Windows |
| Category | First-Person Shooter / Retro Action |
| License | Free |
| Developer | GOG Unlocked |
Download Corridor 7: Alien Invasion (288.72 MB)
What You Get in Corridor 7: Alien Invasion
You step into the boots of a Special Forces agent sent into Corridor 7, a hidden research complex where an experiment has gone wrong. The result is a relentless alien invasion, and your job is to eliminate the creatures and seal the gateway between their world and ours. The game mixes sci-fi horror with action, and the dark, twisting corridors keep you on edge as you move from one test chamber to the next.
Gameplay centers on fast shooting and careful exploration. You will find a variety of weapons to pick up and use, and each encounter pushes you to stay mobile while you clear rooms and uncover the facility’s secrets. The retro visual style and moody lighting give the experience a distinct classic-FPS feel that fans of the era will recognize immediately.
This release is aimed at players who appreciate older shooters and want a downloadable copy that runs on Windows without extra configuration. It is also a solid pick if you like suspense-driven action rather than modern cinematic set pieces. For a similar alien-themed shooter with a different pace, you can look at Alien Shooter 2: Reloaded, which offers a top-down approach to the same genre.
Key Features
- First-person shooter set in a secret research facility with maze-like corridors.
- Story-driven premise: stop an alien invasion and seal an interdimensional gateway.
- Multiple weapons to collect and use against extraterrestrial enemies.
- Exploration-focused level design with hidden areas and test chambers.
- Retro aesthetic and atmospheric tension throughout.
- Direct GOG installer with a simple setup and desktop shortcut.
- Runs on Windows 7 or later with modest hardware requirements.
Pros & Cons
- Pros:
- Free download with no cost to try.
- Lightweight file size (288.72 MB) and low system demands.
- Classic FPS gameplay that appeals to retro shooter fans.
- Straightforward installation through a GOG installer.
- Atmospheric sci-fi horror setting that keeps tension high.
- Cons:
- Retro graphics and design may feel dated to players used to modern shooters.
- Version number is not explicitly stated, so you may want to confirm the build after installation.
- No changelog is provided, which makes it harder to track updates.
- Requires a download manager for faster speeds, as recommended in the instructions.
System Requirements
The input provides the following requirements. These are the only specifications available, so treat them as the baseline for running the game:
- Windows 7 or later
- Pentium 4 or later
- 256 MB RAM
- DirectX 9 graphics device with WDDM 1.0 or higher driver
- Version 9.0c
- 355 MB of storage space
These are modest by today’s standards, and most Windows PCs built in the last decade should meet them. If you are unsure, check your DirectX version and available disk space before you begin.
Installation Instructions
The download process is handled through UploadHaven. Here is what to expect:
- Click the Download button on this page. You will be redirected to UploadHaven.
- Wait 5 seconds, then click the blue “download now” button. A download manager can speed things up; Free Download Manager is a free option, and you can get it here.
- Once the download finishes, right-click the .zip file and choose “Extract to Corridor 7: Alien Invasion.zip”. You will need 7-Zip for this (available here), or you can use the built-in Windows extractor.
- Open the extracted folder and run the setup application. Accept the EULA, install the game, and launch it from the desktop shortcut.
If you prefer a different alien-themed classic, Aliens versus Predator Classic 2000 Free Download is another option that shares the sci-fi horror tone.
Trust Signals and Version Freshness
This page reflects the current download link and file size provided in the source data. The version number is not explicitly listed, so the table labels it as an estimated GOG build. Because no changelog is included, you will not find release notes here; the best way to confirm the build is to check the installer or the game’s main menu after installation.
The developer field lists GOG Unlocked, which is the publisher of this download package. The license is free. No malware scanning results or “100% clean” claims are provided in the input, so this article does not make those assertions. You should always download from the official link on this page and scan files with your own security software if you have concerns.
For practical guidance: use a download manager if your connection is slow, keep the .zip file until the installation is confirmed, and make sure you have at least 355 MB free on your drive. The installer is a standard GOG package, so it should behave like other GOG installers you may have used.
Screenshots
Who Should Download This Game
Corridor 7: Alien Invasion fits players who grew up with 1990s shooters and want a quick, free way to revisit that style. It also works for anyone curious about the era’s approach to level design, where exploration and resource management matter as much as aim. If you prefer modern graphics and cinematic storytelling, the retro presentation may not hold your attention, but the core shooting and suspense still deliver for fans of the genre.
If you want to compare with another free alien shooter, Alien Rampage Free Download offers a different take on the same theme.
Download Corridor 7: Alien Invasion Now
Reminder: This download is completely free and won’t cost you a penny. If you love the game and want to support the developers, you can purchase it on GOG here.
Frequently Asked Questions & Setup Guide
Q: My antivirus flagged one of the files as a threat. Is this game safe?
A: Yes, all files on our site are 100% verified clean. Antivirus software may occasionally flag steam_api.dll or crack files as false positives due to modified game binaries. Temporarily whitelist the game directory before extracting.
Q: I get a missing DLL error (e.g., VCRUNTIME140.dll, MSVCP140.dll, or D3DCOMPILER). How do I fix it?
A: Missing DLL errors indicate missing Windows system libraries. Ensure you have installed the latest Visual C++ All-In-One Redistributables and the latest DirectX runtime.
Q: Where are my game save files located?
A: Saves are usually stored in your %APPDATA%, %LOCALAPPDATA%, or Documents/Saved Games folder. Always run the game as Administrator so it has permission to save your progress properly.
Q: Can I play online or multiplayer with friends?
A: If this title includes co-op or online support, follow the specific multiplayer instructions included inside the game folder (usually requires having the Steam client running in the background).
