Randovania vs Universal Pokémon Randomizer ZX

Randovania is a free, open-source randomizer for supported games on Windows, macOS, and Linux. It rearranges weapons, keys, and other items among locations, and can also change area connections, travel requirements, starting equipment, and starting location. Its randomization aims to keep games completable without glitches or exploits. Multiworld can distribute items among several games and players, including a session played alone, and the project lists integrations for the Prime games, Cave Story, Metroid Dread, AM2R, and Samus Returns. Multiworld requires a Discord account. There are no hard limits on players or worlds, but sessions above 30 have seen little testing. When disconnected from its server, Randovania retains collected-item information and sends it after reconnection, including after a restart. It only supports unmodified game files; Prime and Prime 2 require uncompressed GameCube ISO files. The Metroid Prime page specifies a GameCube ISO and either a modded Wii or Dolphin Emulator. Larger Multiworld sessions can be discussed with the community on Discord.

Universal Pokémon Randomizer ZX is a desktop tool for randomizing Pokémon game files. It is a fork of the Universal Pokemon Randomizer with added features and support for more games, including 3DS titles. Settings can change Pokémon base statistics, evolutions, wild Pokémon, moves, and movesets. The tool supports Windows, macOS, and Linux/Unix, and the release page provides a ZIP package to extract and launch with platform-specific scripts. It requires 64-bit Java 8 or higher; documentation says it needs at least 4 GB of memory when Java's memory setting would otherwise limit it below that. For 3DS games, it accepts decrypted CCI, CIA, and CXI formats. Randomized 3DS output can be a CXI file or a LayeredFS directory, usable with an emulator or a 3DS with custom firmware. A command-line mode accepts input ROM, output ROM, and settings-file arguments, with optional LayeredFS output and log generation. The software is free, with source available under GPL-3.0. Maintainers direct bug reports and help requests to GitHub issues and do not accept feature requests.