About
Old School RuneScape (OSRS) is a massively multiplayer online role-playing game developed and published by Jagex, released in 2013 as a restoration of a 2007 backup of RuneScape and since maintained as its own live game, with content largely decided by player polls. VirtueOS is an open-source private server implementation for Old School RuneScape, built as a Gradle project compiled with Java 8 or later. It requires the original game's client and data to run and reproduces the multiplayer server side of the game; development has since halted.
Getting started
Setting it up involves importing the project into a Java-based build system, compiling with Java 8 or later, and running the server's main entry point; if the RuneLite deobfuscation tool isn't being used, an extra step first builds the client applet.