renamed games folder to entries folder (also contained frameworks, libraries, ...) and added to the backlog

entries/open_apocalypse.md

@@ -0,0 +1,17 @@
+# Open Apocalypse
+
+_Remake of X-COM: UFO Defense, X-COM: Terror from the Deep, X-COM: Apocalypse, UFO: Enemy Unknown._
+
+- Home: http://openapoc.org/
+- State: mature
+- Download: https://ci.appveyor.com/project/openapoc/openapoc
+- Keywords: strategy, commercial content, inspired by X-COM: UFO Defense + X-COM: Terror from the Deep + X-COM: Apocalypse + UFO: Enemy Unknown, requires original content (X-Com Apocalypse)
+- Code repository: https://github.com/OpenApoc/OpenApoc.git
+- Code language: C++
+- Code license: MIT
+- Code dependencies: SDL2
+
+## Building
+
+- Build system: CMake
+- Build instructions: https://github.com/OpenApoc/OpenApoc#building