diff --git a/core/TimerSys.cpp b/core/TimerSys.cpp
index 5831dd40..633de682 100644
--- a/core/TimerSys.cpp
+++ b/core/TimerSys.cpp
@@ -234,7 +234,7 @@ void TimerSystem::GameFrame(bool simulating)
 		g_fTimerThink = CalcNextThink(g_fTimerThink, TIMER_MIN_ACCURACY);
 	}
 
-	RunFrameHooks();
+	RunFrameHooks(simulating);
 
 	if (m_pOnGameFrame->GetFunctionCount())
 	{
diff --git a/core/frame_hooks.cpp b/core/frame_hooks.cpp
index 5603e881..09a38a67 100644
--- a/core/frame_hooks.cpp
+++ b/core/frame_hooks.cpp
@@ -39,11 +39,12 @@
 float g_LastMenuTime = 0.0f;
 float g_LastAuthCheck = 0.0f;
 
-void RunFrameHooks()
+void RunFrameHooks(bool simulating)
 {
 	/* Frame based hooks */
 	g_DBMan.RunFrame();
 	g_HL2.ProcessFakeCliCmdQueue();
+	g_SourceMod.ProcessGameFrameHooks(simulating);
 
 	float curtime = *g_pUniversalTime;
 
@@ -60,4 +61,3 @@ void RunFrameHooks()
 		g_LastAuthCheck = curtime;
 	}
 }
-
diff --git a/core/frame_hooks.h b/core/frame_hooks.h
index 098ff428..f99d560c 100644
--- a/core/frame_hooks.h
+++ b/core/frame_hooks.h
@@ -32,6 +32,6 @@
 #ifndef _INCLUDE_SOURCEMOD_FRAME_HOOKS_H_
 #define _INCLUDE_SOURCEMOD_FRAME_HOOKS_H_
 
-void RunFrameHooks();
+void RunFrameHooks(bool simulating);
 
 #endif //_INCLUDE_SOURCEMOD_FRAME_HOOKS_H_
diff --git a/core/sourcemod.cpp b/core/sourcemod.cpp
index 9b88b66c..5a44e775 100644
--- a/core/sourcemod.cpp
+++ b/core/sourcemod.cpp
@@ -670,6 +670,36 @@ time_t SourceModBase::GetAdjustedTime()
 	return GetAdjustedTime();
 }
 
+void SourceModBase::AddGameFrameHook(GAME_FRAME_HOOK hook)
+{
+	m_frame_hooks.push_back(hook);
+}
+
+void SourceModBase::RemoveGameFrameHook(GAME_FRAME_HOOK hook)
+{
+	for (size_t i = 0; i < m_frame_hooks.size(); i++)
+	{
+		if (m_frame_hooks[i] == hook)
+		{
+			m_frame_hooks.erase(m_frame_hooks.iterAt(i));
+			return;
+		}
+	}
+}
+
+void SourceModBase::ProcessGameFrameHooks(bool simulating)
+{
+	if (m_frame_hooks.size() == 0)
+	{
+		return;
+	}
+
+	for (size_t i = 0; i < m_frame_hooks.size(); i++)
+	{
+		m_frame_hooks[i](simulating);
+	}
+}
+
 SMGlobalClass *SMGlobalClass::head = NULL;
 
 SMGlobalClass::SMGlobalClass()
diff --git a/core/sourcemod.h b/core/sourcemod.h
index 1b222c80..cb4ff880 100644
--- a/core/sourcemod.h
+++ b/core/sourcemod.h
@@ -35,6 +35,7 @@
 #include "sm_globals.h"
 #include <ISourceMod.h>
 #include <sh_stack.h>
+#include <sh_vector.h>
 #include "CDataPack.h"
 
 using namespace SourceHook;
@@ -114,6 +115,9 @@ public: // ISourceMod
 	void GlobalPause();
 	void GlobalUnpause();
 	void DoGlobalPluginLoads();
+	void AddGameFrameHook(GAME_FRAME_HOOK hook);
+	void RemoveGameFrameHook(GAME_FRAME_HOOK hook);
+	void ProcessGameFrameHooks(bool simulating);
 private:
 	CStack<CDataPack *> m_freepacks;
 	char m_SMBaseDir[PLATFORM_MAX_PATH];
@@ -124,6 +128,7 @@ private:
 	bool m_ExecOnMapEnd;
 	unsigned int m_target;
 	bool m_GotBasePath;
+	CVector<GAME_FRAME_HOOK> m_frame_hooks;
 };
 
 extern bool g_Loaded;
diff --git a/public/ISourceMod.h b/public/ISourceMod.h
index 5782b772..66b21090 100644
--- a/public/ISourceMod.h
+++ b/public/ISourceMod.h
@@ -43,7 +43,7 @@
 #include <time.h>
 
 #define SMINTERFACE_SOURCEMOD_NAME		"ISourceMod"
-#define SMINTERFACE_SOURCEMOD_VERSION	5
+#define SMINTERFACE_SOURCEMOD_VERSION	6
 
 /**
 * @brief Forward declaration of the KeyValues class.
@@ -63,6 +63,13 @@ namespace SourceMod
 		Path_SM_Rel,			/**< Base path is relative to SourceMod */
 	};
 
+	/**
+	 * @brief Called when a game frame is fired.
+	 *
+	 * @param simulating		Whether or not the game is ticking.
+	 */
+	typedef void (*GAME_FRAME_HOOK)(bool simulating);
+
 	/**
 	 * @brief Contains miscellaneous helper functions.
 	 */
@@ -225,6 +232,20 @@ namespace SourceMod
 		 * @return			Global client value.
 		 */
 		virtual unsigned int GetGlobalTarget() const =0;
+
+		/**
+		 * @brief Adds a function to be called each game frame.
+		 *
+		 * @param hook		Hook function.
+		 */
+		virtual void AddGameFrameHook(GAME_FRAME_HOOK hook) =0;
+
+		/**
+		 * @brief Removes one game frame hook matching the given function.
+		 *
+		 * @param hook		Hook function.
+		 */
+		virtual void RemoveGameFrameHook(GAME_FRAME_HOOK hook) =0;
 	};
 }