added new entries

games/simulation/_toc.md

@@ -3,6 +3,7 @@
 [comment]: # (start of autogenerated content, do not edit)
 - **[3d.city](3d_city.md)** (JavaScript, GPL-3.0, mature, inactive since 2016)
 - **[Cart Life](cart_life.md)** (AGS Script, Custom, mature, inactive since 2014)
+- **[Core War](corewar.md)** (?, mature)
 - **[Danger from the Deep](danger_from_the_deep.md)** (C++, GPL-2.0, beta, inactive since 2011)
 - **[FlightGear](flightgear.md)** (C++, GPL-2.0, mature)
 - **[FreeTrain](freetrain.md)** (C#, LGPL-2.1, beta, inactive since 2009)

games/simulation/corewar.md

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+# Core War
+
+_Two or more battle programs (called "warriors") compete for control of a virtual computer._
+
+- Home: https://corewar.co.uk/, http://www.corewar.info/, http://vyznev.net/corewar/guide.html, https://sourceforge.net/projects/corewar/, https://corewar.co.uk/standards/icws94.htm, http://www.corewar.info/emulator.htm
+- Media: https://en.wikipedia.org/wiki/Core_War
+- State: mature
+- Keywords: programming
+- Code repository: http://corewar.cvs.sourceforge.net (cvs)
+- Code language: ?
+
+See also [SDL pMars](https://corewar.co.uk/pihlaja/pmars-sdl/index.htm), [corewar.io](https://www.corewar.io/) with [sources on Github](https://github.com/gareththegeek/corewar)
+
+## Building
+