diff --git a/regamedll/dlls/API/CAPI_Impl.cpp b/regamedll/dlls/API/CAPI_Impl.cpp
index 777454ec..17ddcb35 100644
--- a/regamedll/dlls/API/CAPI_Impl.cpp
+++ b/regamedll/dlls/API/CAPI_Impl.cpp
@@ -204,6 +204,26 @@ AmmoInfo *CReGameApi::GetAmmoInfo(AmmoType ammoID) { return &CBasePlayerItem::m_
 AmmoInfoStruct *CReGameApi::GetAmmoInfoEx(AmmoType ammoID) { return ::GetAmmoInfo(ammoID); }
 AmmoInfoStruct *CReGameApi::GetAmmoInfoEx(const char *ammoName) { return ::GetAmmoInfo(ammoName); }
 
+bool CReGameApi::BGetICSEntity(const char *pchVersion) const
+{
+	if (!Q_stricmp(pchVersion, CSENTITY_API_INTERFACE_VERSION))
+	{
+		return true;
+	}
+
+	return false;
+}
+
+bool CReGameApi::BGetIGameRules(const char *pchVersion) const
+{
+	if (!Q_stricmp(pchVersion, GAMERULES_API_INTERFACE_VERSION))
+	{
+		return true;
+	}
+
+	return false;
+}
+
 EXT_FUNC void Regamedll_ChangeString_api(char *&dest, const char *source)
 {
 	size_t len = Q_strlen(source);
diff --git a/regamedll/dlls/API/CAPI_Impl.h b/regamedll/dlls/API/CAPI_Impl.h
index ed5e5167..3e8b6a55 100644
--- a/regamedll/dlls/API/CAPI_Impl.h
+++ b/regamedll/dlls/API/CAPI_Impl.h
@@ -781,6 +781,8 @@ public:
 	EXT_FUNC virtual AmmoInfo *GetAmmoInfo(AmmoType ammoID);
 	EXT_FUNC virtual AmmoInfoStruct *GetAmmoInfoEx(AmmoType ammoID);
 	EXT_FUNC virtual AmmoInfoStruct *GetAmmoInfoEx(const char *ammoName);
+	EXT_FUNC virtual bool BGetICSEntity(const char *pchVersion) const;
+	EXT_FUNC virtual bool BGetIGameRules(const char *pchVersion) const;
 };
 
 void Regamedll_ChangeString_api(char *&dest, const char *source);
diff --git a/regamedll/dlls/gamerules.h b/regamedll/dlls/gamerules.h
index aa3ee75b..548dd08f 100644
--- a/regamedll/dlls/gamerules.h
+++ b/regamedll/dlls/gamerules.h
@@ -337,6 +337,8 @@ public:
 	bool m_bGameOver; // intermission or finale (deprecated name g_fGameOver)
 };
 
+#define GAMERULES_API_INTERFACE_VERSION "GAMERULES_API_INTERFACE_VERSION001"
+
 // CHalfLifeRules - rules for the single player Half-Life game.
 class CHalfLifeRules: public CGameRules
 {
diff --git a/regamedll/public/regamedll/API/CSEntity.h b/regamedll/public/regamedll/API/CSEntity.h
index ef47f30f..2c69f232 100644
--- a/regamedll/public/regamedll/API/CSEntity.h
+++ b/regamedll/public/regamedll/API/CSEntity.h
@@ -32,6 +32,11 @@ class CBaseEntity;
 class CCSEntity
 {
 public:
+	CCSEntity() :
+		m_pContainingEntity(nullptr)
+	{
+	}
+
 	virtual ~CCSEntity() {}
 	virtual void FireBullets(int iShots, Vector &vecSrc, Vector &vecDirShooting, Vector &vecSpread, float flDistance, int iBulletType, int iTracerFreq, int iDamage, entvars_t *pevAttacker);
 	virtual Vector FireBullets3(Vector &vecSrc, Vector &vecDirShooting, float vecSpread, float flDistance, int iPenetration, int iBulletType, int iDamage, float flRangeModifier, entvars_t *pevAttacker, bool bPistol, int shared_rand);
@@ -63,3 +68,5 @@ class CCSMonster: public CCSToggle
 public:
 
 };
+
+#define CSENTITY_API_INTERFACE_VERSION "CSENTITY_API_INTERFACE_VERSION001"
diff --git a/regamedll/public/regamedll/regamedll_api.h b/regamedll/public/regamedll/regamedll_api.h
index 2616ef84..20041468 100644
--- a/regamedll/public/regamedll/regamedll_api.h
+++ b/regamedll/public/regamedll/regamedll_api.h
@@ -38,7 +38,7 @@
 #include <API/CSInterfaces.h>
 
 #define REGAMEDLL_API_VERSION_MAJOR 5
-#define REGAMEDLL_API_VERSION_MINOR 10
+#define REGAMEDLL_API_VERSION_MINOR 11
 
 // CBasePlayer::Spawn hook
 typedef IHookChainClass<void, class CBasePlayer> IReGameHook_CBasePlayer_Spawn;
@@ -589,6 +589,8 @@ public:
 	virtual struct AmmoInfo *GetAmmoInfo(AmmoType ammoID) = 0;
 	virtual struct AmmoInfoStruct *GetAmmoInfoEx(AmmoType ammoID) = 0;
 	virtual struct AmmoInfoStruct *GetAmmoInfoEx(const char *ammoName) = 0;
+	virtual bool BGetICSEntity(const char *pchVersion) const = 0;
+	virtual bool BGetIGameRules(const char *pchVersion) const = 0;
 };
 
 #define VRE_GAMEDLL_API_VERSION "VRE_GAMEDLL_API_VERSION001"