diff --git a/core/ExtensionSys.cpp b/core/ExtensionSys.cpp
index 6adbb554..c4b09daa 100644
--- a/core/ExtensionSys.cpp
+++ b/core/ExtensionSys.cpp
@@ -84,6 +84,8 @@ CRemoteExtension::CRemoteExtension(IExtensionInterface *pAPI, const char *filena
 #define GAMEFIX "2.portal2"
 #elif SOURCE_ENGINE == SE_CSGO
 #define GAMEFIX "2.csgo"
+#elif SOURCE_ENGINE == SE_DOTA
+#define GAMEFIX "2.dota"
 #else
 #define GAMEFIX "2.ep1"
 #endif //(SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2)
diff --git a/core/HalfLife2.h b/core/HalfLife2.h
index 33792dc0..3c9eb4e0 100644
--- a/core/HalfLife2.h
+++ b/core/HalfLife2.h
@@ -99,7 +99,7 @@ public:
 	int				m_SerialNumber;
 	CEntInfo		*m_pPrev;
 	CEntInfo		*m_pNext;
-#if SOURCE_ENGINE >= SE_PORTAL2
+#if (SOURCE_ENGINE >= SE_PORTAL2) && (SOURCE_ENGINE != SE_DOTA)
 	string_t		m_iName;
 	string_t		m_iClassName;
 #endif
diff --git a/core/logic_bridge.cpp b/core/logic_bridge.cpp
index 94d2b4ab..9a605014 100644
--- a/core/logic_bridge.cpp
+++ b/core/logic_bridge.cpp
@@ -189,12 +189,14 @@ static const char *get_source_engine_name()
 	return "portal2";
 #elif SOURCE_ENGINE == SE_CSGO
 	return "csgo";
+#elif SOURCE_ENGINE == SE_DOTA
+	return "dota";
 #endif
 }
 
 static bool symbols_are_hidden()
 {
-#if (SOURCE_ENGINE == SE_CSS) || (SOURCE_ENGINE == SE_ORANGEBOXVALVE) || (SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2) || (SOURCE_ENGINE == SE_CSGO)
+#if (SOURCE_ENGINE == SE_CSS) || (SOURCE_ENGINE == SE_ORANGEBOXVALVE) || (SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2) || (SOURCE_ENGINE == SE_CSGO) || (SOURCE_ENGINE == SE_DOTA)
 	return true;
 #else
 	return false;
diff --git a/core/smn_halflife.cpp b/core/smn_halflife.cpp
index a6884f94..96ad9d46 100644
--- a/core/smn_halflife.cpp
+++ b/core/smn_halflife.cpp
@@ -487,6 +487,8 @@ static cell_t GuessSDKVersion(IPluginContext *pContext, const cell_t *params)
 		return 70;
 	case SOURCE_ENGINE_CSGO:
 		return 80;
+	case SOURCE_ENGINE_DOTA:
+		return 90;
 # endif
 	}
 #else
diff --git a/extensions/sdkhooks/takedamageinfohack.cpp b/extensions/sdkhooks/takedamageinfohack.cpp
index 0598c478..a3a1ec8f 100644
--- a/extensions/sdkhooks/takedamageinfohack.cpp
+++ b/extensions/sdkhooks/takedamageinfohack.cpp
@@ -72,7 +72,7 @@ CTakeDamageInfoHack::CTakeDamageInfoHack( CBaseEntity *pInflictor, CBaseEntity *
 	m_flRadius = 0.0f;
 #endif
 
-#if SOURCE_ENGINE >= SE_CSGO
+#if SOURCE_ENGINE == SE_CSGO
 	m_iDamagedOtherPlayers = 0;
 	m_iObjectsPenetrated = 0;
 	m_uiBulletID = 0;
diff --git a/loader/loader.cpp b/loader/loader.cpp
index fe9f25d8..7fa002f8 100644
--- a/loader/loader.cpp
+++ b/loader/loader.cpp
@@ -79,6 +79,7 @@
 #define FILENAME_1_6_PORTAL2		"sourcemod.2.portal2" PLATFORM_EXT
 #define FILENAME_1_6_CSGO			"sourcemod.2.csgo" PLATFORM_EXT
 #define FILENAME_1_6_CSS			"sourcemod.2.css" PLATFORM_EXT
+#define FILENAME_1_6_DOTA			"sourcemod.2.dota" PLATFORM_EXT
 
 HINSTANCE g_hCore = NULL;
 bool load_attempted = false;
@@ -275,6 +276,11 @@ DLL_EXPORT METAMOD_PLUGIN *CreateInterface_MMS(const MetamodVersionInfo *mvi, co
 			filename = FILENAME_1_6_CSS;
 			break;
 		}
+	case SOURCE_ENGINE_DOTA:
+		{
+			filename = FILENAME_1_6_DOTA;
+			break;
+		}
 	default:
 		{
 			return NULL;
diff --git a/plugins/include/halflife.inc b/plugins/include/halflife.inc
index 75db9661..bbda0d5d 100644
--- a/plugins/include/halflife.inc
+++ b/plugins/include/halflife.inc
@@ -48,6 +48,7 @@
 #define SOURCE_SDK_LEFT4DEAD2		50		/**< Engine released after Left 4 Dead 2 (no SDK yet) */
 #define SOURCE_SDK_ALIENSWARM		60		/**< SDK+Engine released after Alien Swarm */
 #define SOURCE_SDK_CSGO				80		/**< Engine released after CS:GO (no SDK yet) */
+#define SOURCE_SDK_DOTA				90		/**< Engine released after Dota 2 (no SDK) */
 
 #define MOTDPANEL_TYPE_TEXT		0	/**< Treat msg as plain text */
 #define MOTDPANEL_TYPE_INDEX	1	/**< Msg is auto determined by the engine */