Game Overview
A ruined 2043 turns survival into a desperate job for hire, with humanity packed into underground shelters while a zombie plague consumes what remains above. You play mercenary Dorian Stealth, hired to extract Cassie Jefferson, a young hacker whose value makes her a target for the infected and the forces controlling the wasteland. The mission leads through a grim, low-budget sci-fi apocalypse where abandoned corridors, ruined streets, and hostile facilities become killing grounds. Invention 4 favors direct B-movie action over elaborate world-building, delivering a compact zombie shooter with a bleak but pulpy tone.
Combat revolves around choosing the right tool before the undead close the distance. Dorian carries a knife for last-ditch melee encounters, a shotgun that hits hard at moderate range but demands frequent reloads, an assault rifle with scarce ammunition, and a grenade launcher for clearing clustered enemies. Encounters ask you to manage limited resources, keep moving around rushing hordes, and reserve explosive firepower for tougher threats or boss fights. Between firefights, the campaign adds light quest elements and simple environmental puzzles, breaking up the shooting with objectives that push the rescue mission forward. The structure is largely linear, making it easy to pick up for a short, straightforward single-player run.
What separates Invention 4 from more polished zombie shooters is its rough-edged indie character and its focus on a small weapon set with clearly defined combat roles. Rather than offering open-world scavenging or deep crafting, it keeps the pressure on immediate survival: find the route, solve the obstacle, and blast through whatever blocks it. Visuals and presentation feel modest compared with major releases, but the game’s uncomplicated pacing can appeal to players who enjoy old-school FPS campaigns without excessive systems to learn. Fans of budget horror shooters, especially those who prefer the direct corridor combat of early 3D action games over the co-op spectacle of Left 4 Dead, are the best fit; veterans should expect simplicity, while newcomers get an accessible introduction to zombie FPS basics.
Screenshots
Installation
- Click the green button below to be redirected to UploadHaven.
- Wait 15 seconds, then hit “Free Download.” (Free downloads may be slower — upgrade to UploadHaven Pro for faster speeds.)
- Once downloaded, right-click the .zip file and choose “Extract to Invention 4.” (You’ll need 7-Zip for this.)
- Open the extracted folder and run the game as administrator.
- Enjoy! 🎮 If you see missing DLL errors, check the _Redist folder inside and install what’s needed.
System Requirements
- OS: Windows 10
- Processor: i3 10100
- Memory: 8000 MB RAM
- Graphics: 1660Ti
- DirectX: Version 12
- Storage: 2000 MB available space
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Invention 4?
After extracting Invention 4, navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 1.98 GB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Why should I run the game as administrator?
Right-click the game executable and select "Run as Administrator" to avoid save file issues and permission errors. This is especially important on the first launch.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
This game requires Version 12. Try running in compatibility mode, install the latest DirectX runtime, or install the All-in-One VC Redist Package.
My antivirus is blocking the game — is it safe?
Antivirus false positives are common with pre-installed games. Temporarily pause your antivirus during extraction to prevent it from quarantining game files. You can re-enable it after the extraction completes.