--- /dev/null
+* `careers` - Careers of the game.
+* `character` - Characters are playable entity in the world.
+* `combat` - COmbat interactions between characters.
+* `excluded`
+* `game` - A game abstraction for RPG.
+* `game_examples`
+* `platform` - Declares base types allowed on the platform.
+* `races` - Races of the game.
+* `rpg` - A worlg RPG abstraction.
+* `test_game`
+* `test_prog` - A test program with a fake model to check model tools.