diff --git a/doomsday/apps/client/include/dd_main.h b/doomsday/apps/client/include/dd_main.h
index f9f040eb5c..d48f1bcd45 100644
--- a/doomsday/apps/client/include/dd_main.h
+++ b/doomsday/apps/client/include/dd_main.h
@@ -85,17 +85,17 @@ void DD_UpdateEngineState();
 /**
  * Switch to/activate the specified game.
  */
-bool App_ChangeGame(de::Game &game, bool allowReload = false);
+bool App_ChangeGame(Game &game, bool allowReload = false);
 
 /**
  * Returns the application's global Games (collection).
  */
-de::Games &App_Games();
+Games &App_Games();
 
 /**
  * Returns the current game from the application's global collection.
  */
-de::Game &App_CurrentGame();
+Game &App_CurrentGame();
 
 /**
  * Frees the info structures for all registered games.
diff --git a/doomsday/apps/client/include/resource/mapdef.h b/doomsday/apps/client/include/resource/mapdef.h
index 84e0b9edcd..f29923d34b 100644
--- a/doomsday/apps/client/include/resource/mapdef.h
+++ b/doomsday/apps/client/include/resource/mapdef.h
@@ -52,7 +52,7 @@ class MapDef : public de::PathTree::Node, public de::Record
     /**
      * Returns the id used to uniquely reference the map in some (old) definitions.
      */
-    de::String composeUniqueId(de::Game const &currentGame) const;
+    de::String composeUniqueId(Game const &currentGame) const;
 
     MapDef &setSourceFile(de::File1 *newSourceFile);
 
diff --git a/doomsday/apps/client/src/dd_main.cpp b/doomsday/apps/client/src/dd_main.cpp
index 26df1b6ee5..c7ebd341b8 100644
--- a/doomsday/apps/client/src/dd_main.cpp
+++ b/doomsday/apps/client/src/dd_main.cpp
@@ -1198,7 +1198,7 @@ static dint DD_ActivateGameWorker(void *context)
     return 0;
 }
 
-de::Games &App_Games()
+Games &App_Games()
 {
     if(App::appExists())
     {
@@ -1218,7 +1218,7 @@ void App_ClearGames()
     App::app().setGame(App_Games().nullGame());
 }
 
-static void populateGameInfo(GameInfo &info, de::Game &game)
+static void populateGameInfo(GameInfo &info, Game &game)
 {
     info.identityKey = AutoStr_FromTextStd(game.identityKey().toUtf8().constData());
     info.title       = AutoStr_FromTextStd(game.title().toUtf8().constData());
@@ -1318,7 +1318,7 @@ gameid_t DD_GameIdForKey(char const *identityKey)
     return 0; // Invalid id.
 }
 
-de::Game &App_CurrentGame()
+Game &App_CurrentGame()
 {
     return DoomsdayApp::currentGame();
 }
@@ -1811,7 +1811,7 @@ static void initialize()
     // Attempt automatic game selection.
     if(!CommandLine_Exists("-noautoselect") || isDedicated)
     {
-        if(de::Game *game = DD_AutoselectGame())
+        if(Game *game = DD_AutoselectGame())
         {
             // An implicit game session profile has been defined.
             // Add all resources specified using -file options on the command line
diff --git a/doomsday/apps/client/src/def_main.cpp b/doomsday/apps/client/src/def_main.cpp
index e3d278c312..3ab3df11ff 100644
--- a/doomsday/apps/client/src/def_main.cpp
+++ b/doomsday/apps/client/src/def_main.cpp
@@ -495,7 +495,7 @@ static void readAllDefinitions()
 
     if(App_GameLoaded())
     {
-        de::Game &game = App_CurrentGame();
+        Game &game = App_CurrentGame();
 
         // Some games use definitions that are translated to DED.
         QStringList mapInfoUrns = allMapInfoUrns();
diff --git a/doomsday/apps/client/src/ui/widgets/taskbarwidget.cpp b/doomsday/apps/client/src/ui/widgets/taskbarwidget.cpp
index 94910be714..455e68a8f0 100644
--- a/doomsday/apps/client/src/ui/widgets/taskbarwidget.cpp
+++ b/doomsday/apps/client/src/ui/widgets/taskbarwidget.cpp
@@ -266,7 +266,7 @@ DENG_GUI_PIMPL(TaskBarWidget)
 
     void showOrHideMenuItems()
     {
-        de::Game &game = App_CurrentGame();
+        Game &game = App_CurrentGame();
 
         itemWidget(mainMenu, POS_GAMES)            .show(!game.isNull());
         itemWidget(mainMenu, POS_UNLOAD)           .show(!game.isNull());
diff --git a/doomsday/apps/libdoomsday/include/doomsday/doomsdayapp.h b/doomsday/apps/libdoomsday/include/doomsday/doomsdayapp.h
index 74c7641fac..7fe885fff6 100644
--- a/doomsday/apps/libdoomsday/include/doomsday/doomsdayapp.h
+++ b/doomsday/apps/libdoomsday/include/doomsday/doomsdayapp.h
@@ -24,6 +24,8 @@
 #include "busymode.h"
 #include "gameapi.h"
 
+class Players;
+
 /**
  * Common application-level state and components.
  *
@@ -46,8 +48,9 @@ class LIBDOOMSDAY_PUBLIC DoomsdayApp
 public:
     static DoomsdayApp &app();
     static Plugins &plugins();
-    static de::Games &games();
-    static de::Game &currentGame();
+    static Games &games();
+    static Players &players();
+    static Game &currentGame();
     static BusyMode &busyMode();
 
 private:
diff --git a/doomsday/apps/libdoomsday/include/doomsday/game.h b/doomsday/apps/libdoomsday/include/doomsday/game.h
index 45874264dd..ede78ed6c6 100644
--- a/doomsday/apps/libdoomsday/include/doomsday/game.h
+++ b/doomsday/apps/libdoomsday/include/doomsday/game.h
@@ -65,10 +65,7 @@ typedef struct gamedef_s {
 #include <QMultiMap>
 
 class ResourceManifest;
-
-namespace de {
-
-class File1;
+namespace de { class File1; }
 
 /**
  * Records top-level game configurations registered by the loaded game plugin(s).
@@ -97,12 +94,12 @@ class Game : public de::game::Game
      * @param legacySavegameSubfoler  Game-specific subdirectory of /home for legacy savegames.
      * @param mapMapInfo  Base relative path to the main MAPINFO definition data.
      */
-    Game(String const &identityKey, Path const &configDir,
-         String const &title                   = "Unnamed",
-         String const &author                  = "Unknown",
-         String const &legacySavegameNameExp   = "",
-         String const &legacySavegameSubfolder = "",
-         String const &mainMapInfo             = "");
+    Game(de::String const &identityKey, de::Path const &configDir,
+         de::String const &title                   = "Unnamed",
+         de::String const &author                  = "Unknown",
+         de::String const &legacySavegameNameExp   = "",
+         de::String const &legacySavegameSubfolder = "",
+         de::String const &mainMapInfo             = "");
 
     virtual ~Game();
 
@@ -118,13 +115,13 @@ class Game : public de::game::Game
      *
      * @see status()
      */
-    String const &statusAsText() const;
+    de::String const &statusAsText() const;
 
     /**
      * Returns information about the game as styled text. Printed by "inspectgame",
      * for instance.
      */
-    String description() const;
+    de::String description() const;
 
     /**
      * Returns the unique identifier of the plugin which registered the game.
@@ -175,7 +172,7 @@ class Game : public de::game::Game
     /**
      * Returns the regular expression used for locating legacy savegame files.
      */
-    String legacySavegameNameExp() const;
+    de::String legacySavegameNameExp() const;
 
     /**
      * Determine the absolute path to the legacy savegame folder for the game. If there is
@@ -183,7 +180,7 @@ class Game : public de::game::Game
      * the introduction of the modern, package-based .save format) then a zero length string
      * is returned.
      */
-    String legacySavegamePath() const;
+    de::String legacySavegamePath() const;
 
     /**
      * Add a new manifest to the list of manifests.
@@ -213,7 +210,7 @@ class Game : public de::game::Game
      *
      * @return  @c true iff @a file is required by this game.
      */
-    bool isRequiredFile(File1 &file);
+    bool isRequiredFile(de::File1 &file);
 
 public:
     /**
@@ -239,7 +236,7 @@ class Game : public de::game::Game
      * @param withStatus  @c true to  include the current availability/load status
      *                    of each file.
      */
-    String filesAsText(int rflags, bool withStatus = true) const;
+    de::String filesAsText(int rflags, bool withStatus = true) const;
 
     static void printFiles(Game const &game, int rflags, bool printStatus = true);
 
@@ -270,8 +267,6 @@ class NullGame : public Game
     }
 };
 
-} // namespace de
-
 #endif // __cplusplus
 
 #endif /* LIBDOOMSDAY_GAME_H */
diff --git a/doomsday/apps/libdoomsday/include/doomsday/games.h b/doomsday/apps/libdoomsday/include/doomsday/games.h
index edad9bac55..980f4aeefb 100644
--- a/doomsday/apps/libdoomsday/include/doomsday/games.h
+++ b/doomsday/apps/libdoomsday/include/doomsday/games.h
@@ -27,10 +27,8 @@
 #include <de/Observers>
 #include <QList>
 
-namespace de {
-
 /**
- * Encapsulates a collection of de::Game instances and the logical operations
+ * Encapsulates a collection of Game instances and the logical operations
  * which are performed upon it (such as searches and various index printing
  * algorithms).
  *
@@ -91,7 +89,7 @@ class Games
      *
      * @throws NotFoundError if no game is associated with @a identityKey.
      */
-    Game &byIdentityKey(String identityKey) const;
+    Game &byIdentityKey(de::String identityKey) const;
 
     /**
      * @return  Game associated with @a gameId.
@@ -161,6 +159,4 @@ class Games
     DENG2_PRIVATE(d)
 };
 
-} // namespace de
-
 #endif // LIBDOOMSDAY_GAMES_H
diff --git a/doomsday/apps/libdoomsday/include/doomsday/players.h b/doomsday/apps/libdoomsday/include/doomsday/players.h
new file mode 100644
index 0000000000..d90684c3f8
--- /dev/null
+++ b/doomsday/apps/libdoomsday/include/doomsday/players.h
@@ -0,0 +1,38 @@
+/** @file doomsday/players.h
+ *
+ * @authors Copyright (c) 2015 Jaakko Keränen <jaakko.keranen@iki.fi>
+ *
+ * @par License
+ * GPL: http://www.gnu.org/licenses/gpl.html
+ *
+ * <small>This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. This program is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details. You should have received a copy of the GNU
+ * General Public License along with this program; if not, see:
+ * http://www.gnu.org/licenses</small>
+ */
+
+#ifndef LIBDOOMSDAY_PLAYERS_H
+#define LIBDOOMSDAY_PLAYERS_H
+
+#include "libdoomsday.h"
+
+/**
+ * Base class for player state: common functionality shared by both the server
+ * and the client.
+ */
+class LIBDOOMSDAY_PUBLIC Players
+{
+public:
+    Players();
+
+private:
+    DENG2_PRIVATE(d)
+};
+
+#endif // LIBDOOMSDAY_PLAYERS_H
+
diff --git a/doomsday/apps/libdoomsday/src/doomsdayapp.cpp b/doomsday/apps/libdoomsday/src/doomsdayapp.cpp
index 43cd7194dd..dd3829db62 100644
--- a/doomsday/apps/libdoomsday/src/doomsdayapp.cpp
+++ b/doomsday/apps/libdoomsday/src/doomsdayapp.cpp
@@ -192,7 +192,7 @@ Games &DoomsdayApp::games()
 
 Game &DoomsdayApp::currentGame()
 {
-    return App::game().as<de::Game>();
+    return App::game().as<Game>();
 }
 
 BusyMode &DoomsdayApp::busyMode()
diff --git a/doomsday/apps/libdoomsday/src/game.cpp b/doomsday/apps/libdoomsday/src/game.cpp
index 189badcbb8..e2d00e67a1 100644
--- a/doomsday/apps/libdoomsday/src/game.cpp
+++ b/doomsday/apps/libdoomsday/src/game.cpp
@@ -32,7 +32,7 @@
 #include <de/charsymbols.h>
 #include <QtAlgorithms>
 
-namespace de {
+using namespace de;
 
 DENG2_PIMPL(Game)
 {
@@ -391,5 +391,3 @@ void Game::consoleRegister() //static
 
 NullGame::NullGame() : Game("" /*null*/, "doomsday", "null-game", "null-game")
 {}
-
-} // namespace de
diff --git a/doomsday/apps/libdoomsday/src/games.cpp b/doomsday/apps/libdoomsday/src/games.cpp
index 6e5c410b24..64163819db 100644
--- a/doomsday/apps/libdoomsday/src/games.cpp
+++ b/doomsday/apps/libdoomsday/src/games.cpp
@@ -32,7 +32,7 @@
 #include <de/charsymbols.h>
 #include <QtAlgorithms>
 
-namespace de {
+using namespace de;
 
 DENG2_PIMPL(Games)
 {
@@ -364,5 +364,3 @@ void Games::consoleRegister() //static
 
     Game::consoleRegister();
 }
-
-} // namespace de
diff --git a/doomsday/apps/libdoomsday/src/players.cpp b/doomsday/apps/libdoomsday/src/players.cpp
new file mode 100644
index 0000000000..aa1d891c4f
--- /dev/null
+++ b/doomsday/apps/libdoomsday/src/players.cpp
@@ -0,0 +1,29 @@
+/** @file doomsday/players.cpp
+ *
+ * @authors Copyright (c) 2015 Jaakko Keränen <jaakko.keranen@iki.fi>
+ *
+ * @par License
+ * GPL: http://www.gnu.org/licenses/gpl.html
+ *
+ * <small>This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. This program is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details. You should have received a copy of the GNU
+ * General Public License along with this program; if not, see:
+ * http://www.gnu.org/licenses</small>
+ */
+
+#include "doomsday/players.h"
+
+using namespace de;
+
+DENG2_PIMPL_NOREF(Players)
+{
+
+};
+
+Players::Players() : d(new Instance)
+{}
diff --git a/doomsday/apps/server/src/shelluser.cpp b/doomsday/apps/server/src/shelluser.cpp
index 2fabe3614a..11154e89bc 100644
--- a/doomsday/apps/server/src/shelluser.cpp
+++ b/doomsday/apps/server/src/shelluser.cpp
@@ -96,7 +96,7 @@ void ShellUser::sendInitialUpdate()
 
 void ShellUser::sendGameState()
 {
-    de::Game &game = App_CurrentGame();
+    Game &game = App_CurrentGame();
     String mode = (App_GameLoaded()? game.identityKey() : "");
 
     /**
diff --git a/doomsday/sdk/libcore/include/de/game/game.h b/doomsday/sdk/libcore/include/de/game/game.h
index b6b0b91021..1599a37878 100644
--- a/doomsday/sdk/libcore/include/de/game/game.h
+++ b/doomsday/sdk/libcore/include/de/game/game.h
@@ -35,7 +35,7 @@ namespace game {
  * <pre>load doom2</pre>
  *
  * @todo The 'game' namespace can be removed once the client/server apps don't
- * declare their own de::Game classes any more.
+ * declare their own Game classes any more.
  */
 class DENG2_PUBLIC Game
 {