moved the entries up one folder, added the folder to the keywords

games/maratis.md

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+# Maratis
+
+_Maratis is a simple cross-platform 3d engine and visual game development tool._
+
+- Home: http://www.maratis3d.org/
+- State: beta
+- Download: http://www.maratis3d.org/?page_id=57
+- Keywords: framework
+- Code repository: https://github.com/anael-seghezzi/Maratis-4.git, https://code.google.com/archive/p/maratis/source
+- Code language: C++
+- Code license: GPL-2.0
+
+Maratis 3.x is mature.
+
+## Building
+
+- Build system: CMake (Maratis 4), Scons (Maratis 3.x)