Reverse, Crack, De-Obfuscate
CTF style challenges for hands on practice with reverse engineering and malware analysis techniques.
Challenges
The Range features beginner to intermediate reverse engineering challenges that safely introduce you to real world anti analysis techniques. Walkthroughs are available for some challenges.
The Forge
The Forge alpha has been launched. Create custom challenges with the click of a button. The Forge is in the early stages and development is still being completed. Only free access and limited toggles and templates are available. Please report any bugs, issues, or feedback to support@rerange.com
Sandbox
The Sandbox challenges mimic real software and are designed to be hacked creatively rather than solved. No flags. No required goals. Just open ended exploration.
Updates
Coming Soon
Recent Updates
- New game hacking challenge: Damage Hack (3/18/26)
- New game hacking challenge: Jump Hack (3/18/26)
- New game hacking challenge: Player Coords (3/18/26)
Leaderboard
| # | User | Solves |
|---|---|---|
| 1 | 0v41n | 18 |
| 2 | Steezus | 16 |
| 3 | avivW | 15 |
| 4 | HoXoN | 11 |
| 5 | daniel | 10 |
| 6 | tatore | 7 |
| 7 | fozen | 7 |
| 8 | @lan | 6 |
| 9 | 0p4n1k | 6 |
| 10 | Aqua | 6 |
A practice ground for reverse engineering
ReRange is a reverse engineering practice platform designed for beginners and intermediates. It combines guided challenges with open ended sandbox programs that mimic real software behavior. Users can safely explore binary analysis, anti analysis techniques, and creative program modification without pressure or risk.
Guides, Writeups, Learning
Find detailed writeups for some of the challenges on the knowledge page.
FAQ
Software reverse engineering is the process of analyzing software to understand its design and functionality.
There are many reasons to reverse different pieces of software. It could be to optimize code, find vulnerabilities, discover the functionality of malware, or even to gain insight into a competitors software.
Yes all the challenges are written and tested by me. most of them contain anti analysis techniques but never anything malicious.
Yes! The easy challenges are beginner friendly, most of them also have a guide you can follow if you are not sure what to do
You’ll need to know how to use disassemblers, debuggers and python is always a plus.
Disassemblers
– IDA
– Ghidra
– Binary Ninja
– Radare2
Debuggers
– x64dbg
– gdb
– WinDbg
Visit the walkthroughs page and follow the step by step guide.