new entries and cleanup

games/action/_toc.md

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+# Action games
+
+[comment]: # (start of autogenerated content, do not edit)
+- **[Epiar](epiar.md)** (C, C++. Lua, Html, GPL-2.0, beta)
+
+[comment]: # (end of autogenerated content)

games/action/epiar.md

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+# Epiar
+
+_Open-ended space action/trading game._
+
+- Home: <https://web.archive.org/web/20170123082605/http://epiar.net/>
+- Download: <https://web.archive.org/web/20161106210633/http://epiar.net/download>
+- State: beta
+- Code: https://github.com/cthielen/Epiar
+- Language(s): C, C++. Lua, Html
+- License: GPL-2.0
+
+## Building
+