ReThink 3.5 Free Download
Game Overview
ReThink 3.5 is one of the first person puzzle games I made during the pandemic time, but could not release for a variety of reasons. I rebuilt the game in Unreal Engine 5, so that all the content that was in the game will not be wasted and is accessible to those who want to play through it. This also allows the game to utilize and benefit from all the other improvements that were made for the newer games, resulting in a better experience.
As the Name implies, the game fits between ReThink 3 and 4 in terms of how the puzzles are designed, but it also comes with its own unique feature that is not in the newer games (yet). Content wise, there are more than 40 puzzles in the game, all built around the utilization of lasers and logic. On the technical side of things, the game comes with improved performance over the previously released ReThink games. Especially slower CPUs and Graphics cards should benefit from this*, while players with faster hardware also should see improved performance.
Graphically, the games peaceful setting looks great on highest settings, while still looking like the older games (ReThink 1-3) on lower settings – retaining its compatibility with older hardware. (In fact, the rebuilt game runs a lot better than the original one would have.)
*System requirements and the engines driver requirements still apply.
Installation Instructions
- 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 ReThink 3.5.” (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.
Download Links
Download ReThink 3.5 using the button below.
Setup Guide & Troubleshooting
How do I fix missing DLL errors for ReThink 3.5?
After extracting ReThink 3.5, 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 6.72 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?
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.
System Requirements
- Requires a 64-bit processor and operating system
- OS: Windows 10 or newer
- Processor: AMD Phenom / Intel Pentium
- Memory: 4 GB RAM
- Graphics: AMD RX 470 / nvidia GTX 1060
- Storage: 6600 MB available space
- Additional Notes: The game will not run on Windows 7 and/or DirectX 11.
Screenshots

