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

entries/catacombsdl.md

@@ -0,0 +1,16 @@
+# CatacombSDL
+
+_Remake of Catacomb, Catacomb II._
+
+- Home: https://github.com/Blzut3/CatacombSDL
+- State: mature, inactive since 2014
+- Keywords: remake, commercial content, inspired by Catacomb + Catacomb II
+- Code repository: https://github.com/Blzut3/CatacombSDL.git
+- Code language: C
+- Code license: GPL-2.0
+
+Sources of [Catacomb](https://github.com/CatacombGames/TheCatacomb).
+
+## Building
+
+- Build system: CMake