Universal Pokémon Randomizer ZX

Windows · Mac · Linux

Freedom report

Three barsScore 6.5

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

Universal Pokémon Randomizer ZX is ranked #6 of 24 in game randomizer tools on Freedom251. It runs on Linux, macOS, Windows. There is a free plan.

Universal Pokémon Randomizer ZX plans and pricing

All plans

Universal Pokemon Randomizer ZX Free Downloadable desktop randomizer · source code available under GPL-3.0 github.com · 8 Oct 2026

Compared on game randomizer tools

Free plan: Yes
Randomization scope: multi-scope
Supported platforms: Windows, macOS, Linux/Unix; Nintendo handheld game ROMs including 3DS
Seed sharing: Yes
Customization level: advanced

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The record

Purpose: Universal Pokemon Randomizer ZX is a fork of the Universal Pokemon Randomizer with new features and support for additional games, including 3DS games.
Downloads: The release page provides a ZIP download that users extract and launch with platform-specific scripts.
Desktop support: Release instructions provide launchers for Windows, Mac, and other Unix-based systems.
Java requirement: The randomizer requires 64-bit Java 8 or higher.
Memory requirement: The documentation says the randomizer needs at least 4 GB of memory when Java's memory setting otherwise limits it below that amount.
3DS support: The tool supports randomizing mainline Pokémon games on 3DS and accepts decrypted CCI, CIA, and CXI formats.
3DS output: For 3DS games, randomized output can be a CXI file or a LayeredFS directory, and LayeredFS can be used with an emulator or a 3DS with custom firmware.
Randomization settings: Options include changing Pokémon base statistics, evolutions, wild Pokémon, moves, and movesets.
CLI: A command-line mode accepts input ROM, output ROM, and settings-file arguments, with optional LayeredFS output and log generation.
Security and trust: The repository identifies the project as GPL-3.0 licensed; the opened project pages do not state security certifications or compliance claims.
Support: The maintainers direct bug reports and help requests to GitHub issues and say they do not take feature requests.
Known issues: The project wiki documents game-specific known issues for the currently released version, including some visual glitches and gameplay quirks.
Intended users: The wiki describes the application as a randomizer for Pokémon game files and provides separate guidance for users randomizing 3DS games.
Price from: Free

Where it ranks on Freedom251

Best Game Randomizer Tools in 2026#6 of 24

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Sources

github.com/SuperBlah/universal-pokemon-randomizer-· checked 8 Oct 2026
github.com/Ajarmar/universal-pokemon-randomizer-zx· checked 8 Oct 2026
github.com/Ajarmar/universal-pokemon-randomizer-zx· checked 8 Oct 2026
github.com/Ajarmar/universal-pokemon-randomizer-zx· checked 8 Oct 2026
github.com/Ajarmar/universal-pokemon-randomizer-zx· checked 8 Oct 2026
github.com/Ajarmar/universal-pokemon-randomizer-zx· checked 8 Oct 2026
github.com/Ajarmar/universal-pokemon-randomizer-zx· checked 8 Oct 2026