Nexon Launcher vs RomM

Nexon Launcher is a free desktop application for downloading and playing Nexon games. It brings Nexon games together in one global launcher and is available for Windows and macOS. Users must sign in to a Nexon account to download a game. Nexon’s Windows guide directs users to download and run NexonLauncherSetup.exe; its macOS instructions say MapleStory.pkg installs the Launcher. Game clients can update in the background and patch to the latest version when needed. A Repair Installation option checks game files and downloads or updates missing or damaged files. Players can link Steam and Nexon accounts so a Steam launch automatically signs in to the linked Nexon account. Nexon support addresses antivirus false positives involving the Launcher or Nexon Game Security, including exclusion and firewall guidance. Support tickets about these issues should include the antivirus name, troubleshooting summary and an error screenshot. Nexon was founded in 2006 and is headquartered in El Segundo, California, United States.

RomM is a free, self-hosted app for scanning, enriching, browsing, and playing a ROM collection. The project says it supports more than 400 platforms, including multi-disk games, DLCs, mods, hacks, and manuals. Compatible games can run in a browser through EmulatorJS and Ruffle without setup, while saves and states sync across devices with conflict resolution. Metadata providers include IGDB, ScreenScraper, LaunchBox, and MobyGames; RomM can also fetch artwork from SteamGridDB and track RetroAchievements. A built-in patcher applies ROM hacks and translations. The project lists granular per-user permissions, OIDC single sign-on, a REST API, and exports for ES-DE and Pegasus. Official clients include a Windows Playnite plugin, the Android Argosy handheld launcher, and the Linux Grout handheld client. A native iOS app is a community project, and the team says it does not regularly review community project source code. RomM is AGPL-3.0 licensed, with no tracking or paid features. Setup help and community discussion are available through Discord.