diff --git a/sp/src/game/server/triggers.cpp b/sp/src/game/server/triggers.cpp
index 21b7b256483..021f2b6fb7c 100644
--- a/sp/src/game/server/triggers.cpp
+++ b/sp/src/game/server/triggers.cpp
@@ -5678,3 +5678,86 @@ bool IsTriggerClass( CBaseEntity *pEntity )
 	
 	return false;
 }
+
+#ifdef MAPBASE
+LINK_ENTITY_TO_CLASS(trigger_userinput, CTriggerUserInput);
+
+BEGIN_DATADESC(CTriggerUserInput)
+DEFINE_KEYFIELD(m_eKey, FIELD_INTEGER, "lookedkey"),
+DEFINE_OUTPUT(m_OnKeyPressed, "OnKeyPressed"),
+DEFINE_OUTPUT(m_OnKeyHeld, "OnKeyHeld"),
+DEFINE_OUTPUT(m_OnKeyReleased, "OnKeyReleased"),
+END_DATADESC();
+
+CTriggerUserInput::CTriggerUserInput()
+{
+	m_eKey = KEY_FORWARD;
+	m_ButtonRep = IN_FORWARD;
+}
+
+void CTriggerUserInput::Spawn()
+{
+	switch (m_eKey)
+	{
+	case KEY_FORWARD:
+		m_ButtonRep = IN_FORWARD;
+		break;
+	case KEY_BACK:
+		m_ButtonRep = IN_BACK;
+		break;
+	case KEY_MOVELEFT:
+		m_ButtonRep = IN_MOVELEFT;
+		break;
+	case KEY_MOVERIGHT:
+		m_ButtonRep = IN_MOVERIGHT;
+		break;
+	case KEY_JUMP:
+		m_ButtonRep = IN_JUMP;
+		break;
+	case KEY_DUCK:
+		m_ButtonRep = IN_DUCK;
+		break;
+	case KEY_ATTACK:
+		m_ButtonRep = IN_ATTACK;
+		break;
+	case KEY_ATTACK2:
+		m_ButtonRep = IN_ATTACK2;
+		break;
+	case KEY_RELOAD:
+		m_ButtonRep = IN_RELOAD;
+		break;
+	default:
+		DevWarning("Passed unhandled key press");
+		m_ButtonRep = 0;
+		break;
+	}
+
+	BaseClass::Spawn();
+	BaseClass::InitTrigger();
+}
+
+void CTriggerUserInput::Touch(CBaseEntity* pOther)
+{
+	if (PassesTriggerFilters(pOther))
+	{
+		CBasePlayer* pPlayer = ToBasePlayer(pOther);
+		if (pPlayer)
+		{
+			if (pPlayer->m_afButtonPressed & m_ButtonRep)
+			{
+				m_OnKeyPressed.FireOutput(pPlayer, this);
+			}
+
+			if (pPlayer->m_nButtons & m_ButtonRep)
+			{
+				m_OnKeyHeld.FireOutput(pPlayer, this);
+			}
+
+			if (pPlayer->m_afButtonReleased & m_ButtonRep)
+			{
+				m_OnKeyReleased.FireOutput(pPlayer, this);
+			}
+		}
+	}
+}
+#endif // MAPBASE
\ No newline at end of file
diff --git a/sp/src/game/server/triggers.h b/sp/src/game/server/triggers.h
index b6760677905..7cbfa456507 100644
--- a/sp/src/game/server/triggers.h
+++ b/sp/src/game/server/triggers.h
@@ -356,4 +356,42 @@ class CTriggerCamera : public CBaseEntity
 #endif
 };
 
+#ifdef MAPBASE
+//--------- CTriggerUserInput -------------------------------------------------------------------
+//
+// Ported from Momentum Mod
+// https://github.com/momentum-mod/game/blob/2e490c7e722788ade7221ba7ba5d4d503d60a115/mp/src/game/server/momentum/mom_triggers.cpp#L1200
+//
+//-----------------------------------------------------------------------------------------------
+class CTriggerUserInput : public CBaseTrigger
+{
+	DECLARE_CLASS(CTriggerUserInput, CBaseTrigger);
+public:
+	CTriggerUserInput();
+	void Spawn();
+	void Touch(CBaseEntity* pOther);
+	DECLARE_DATADESC();
+
+private:
+	enum Key
+	{
+		KEY_FORWARD = 0,
+		KEY_BACK,
+		KEY_MOVELEFT,
+		KEY_MOVERIGHT,
+		KEY_JUMP,
+		KEY_DUCK,
+		KEY_ATTACK,
+		KEY_ATTACK2,
+		KEY_RELOAD
+	};
+	int m_ButtonRep;
+	Key m_eKey;
+	COutputEvent m_OnKeyPressed;
+	COutputEvent m_OnKeyHeld;
+	COutputEvent m_OnKeyReleased;
+};
+#endif // MAPBASE
+
+
 #endif // TRIGGERS_H