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entries/the_catacomb.md

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+# The Catacomb
+
+- Home: https://github.com/CatacombGames/TheCatacomb
+- Media: https://en.wikipedia.org/wiki/Catacomb_(video_game)
+- State: mature, inactive since 1990
+- Keyword: action, shooter, 2D, content commercial
+- Code repository: https://github.com/CatacombGames/TheCatacomb.git
+- Code language: C
+- Code license: GPL-2.0
+
+## Building