diff --git a/src/doomstat.h b/src/doomstat.h
index bbb323c7e3..70869b5a2c 100644
--- a/src/doomstat.h
+++ b/src/doomstat.h
@@ -71,6 +71,9 @@ extern	bool			netgame;
 // Bot game? Like netgame, but doesn't involve network communication.
 extern	bool			multiplayer;
 
+// [SP] MPMap implementation - invokes fake multiplayer without bots
+extern	bool			multiplayernext;
+
 // Flag: true only if started as net deathmatch.
 EXTERN_CVAR (Int, deathmatch)
 
diff --git a/src/g_game.cpp b/src/g_game.cpp
index b0c8775fc5..2c827e6391 100644
--- a/src/g_game.cpp
+++ b/src/g_game.cpp
@@ -164,6 +164,7 @@ bool	 		viewactive;
 
 bool 			netgame;				// only true if packets are broadcast 
 bool			multiplayer;
+bool			multiplayernext = false;	// [SP] MPMap implementation
 player_t		players[MAXPLAYERS];
 bool			playeringame[MAXPLAYERS];
 
diff --git a/src/g_level.cpp b/src/g_level.cpp
index d3a8c4015a..65e19d4237 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -90,6 +90,8 @@
 
 #include "g_hub.h"
 
+#include <string.h>
+
 void STAT_StartNewGame(const char *lev);
 void STAT_ChangeLevel(const char *newl);
 
@@ -181,6 +183,16 @@ CCMD (map)
 			}
 			else
 			{
+				if (argv.argc() > 2 && strcmp(argv[2], "coop") == 0)
+				{
+					deathmatch = false;
+					multiplayernext = true;
+				}
+				else if (argv.argc() > 2 && strcmp(argv[2], "dm") == 0)
+				{
+					deathmatch = true;
+					multiplayernext = true;
+				}
 				G_DeferedInitNew (argv[1]);
 			}
 		}
@@ -192,7 +204,7 @@ CCMD (map)
 	}
 	else
 	{
-		Printf ("Usage: map <map name>\n");
+		Printf ("Usage: map <map name> [coop|dm]\n");
 	}
 }
 
@@ -218,6 +230,16 @@ CCMD(recordmap)
 			}
 			else
 			{
+				if (argv.argc() > 3 && strcmp(argv[3], "coop") == 0)
+				{
+					deathmatch = false;
+					multiplayernext = true;
+				}
+				else if (argv.argc() > 3 && strcmp(argv[3], "dm") == 0)
+				{
+					deathmatch = true;
+					multiplayernext = true;
+				}
 				G_DeferedInitNew(argv[2]);
 				gameaction = ga_recordgame;
 				newdemoname = argv[1];
@@ -232,7 +254,7 @@ CCMD(recordmap)
 	}
 	else
 	{
-		Printf("Usage: recordmap <filename> <map name>\n");
+		Printf("Usage: recordmap <filename> <map name> [coop|dm]\n");
 	}
 }
 
@@ -258,13 +280,23 @@ CCMD (open)
 		}
 		else
 		{
+			if (argv.argc() > 2 && strcmp(argv[2], "coop") == 0)
+			{
+				deathmatch = false;
+				multiplayernext = true;
+			}
+			else if (argv.argc() > 2 && strcmp(argv[2], "dm") == 0)
+			{
+				deathmatch = true;
+				multiplayernext = true;
+			}
 			gameaction = ga_newgame2;
 			d_skill = -1;
 		}
 	}
 	else
 	{
-		Printf ("Usage: open <map file>\n");
+		Printf ("Usage: open <map file> [coop|dm]\n");
 	}
 }
 
@@ -293,7 +325,8 @@ void G_NewInit ()
 	G_ClearSnapshots ();
 	ST_SetNeedRefresh();
 	netgame = false;
-	multiplayer = false;
+	multiplayer = multiplayernext;
+	multiplayernext = false;
 	if (demoplayback)
 	{
 		C_RestoreCVars ();