new entry

games/_all.md

@@ -292,6 +292,7 @@
 - **[Open Meridian](open_meridian.md)** (C, C++, GPL-2.0, mature)
 - **[Open Panzer](open_panzer.md)** (JavaScript, GPL-2.0, mature)
 - **[Open RPG Maker](open_rpg_maker.md)** (C++, GPL-3.0, beta, inactive since 2014)
+- **[Open RSC](open_rsc.md)** (Java, GPL-3.0, mature)
 - **[Open Rails](open_rails.md)** (C#, GPL-3.0, mature)
 - **[Open Soccer Star](open_soccer_star.md)** (PHP, GPL-3.0, beta)
 - **[Open Sonic](open_sonic.md)** (C, GPL-2.0, beta)

games/_role-playing.md

@@ -74,6 +74,7 @@
 - **[ORIENT](orient.md)** (C#, Java, GPL-2.0, mature, inactive since 2009)
 - **[Open Legend RPG](open_legend_rpg.md)** (Text, Custom, mature)
 - **[Open Meridian](open_meridian.md)** (C, C++, GPL-2.0, mature)
+- **[Open RSC](open_rsc.md)** (Java, GPL-3.0, mature)
 - **[Open Tibia](open_tibia.md)** (C++, GPL-2.0, beta, inactive since 2014)
 - **[OpenMW](open_mw.md)** (C++, GPL-3.0, mature)
 - **[Openglad](openglad.md)** (C++, GPL-2.0, mature, inactive since 2004)

games/open_rsc.md

@@ -0,0 +1,18 @@
+# Open RSC
+
+_As close of a replica Runescape game experience as possible._
+
+- Home: https://openrsc.com/
+- State: mature 
+- Download: (see home)
+- Platform: Windows, Linux, macOS, Android
+- Keywords: massive multiplayer online, role playing
+- Code repository: https://gitlab.openrsc.com/open-rsc/Game.git, https://github.com/Open-RSC/Game.git (mirror)
+- Code language: Java
+- Code license: GPL-3.0
+
+See also the Wikipedia entry for [RuneScape](https://en.wikipedia.org/wiki/RuneScape).
+
+## Building
+
+- Build system: Gradle