diff --git a/src/g_level.cpp b/src/g_level.cpp
index 1278494b245..d82c6835809 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -2400,6 +2400,24 @@ void FLevelLocals::ApplyCompatibility2()
 	i_compatflags2 = GetCompatibility2(compatflags2) | ii_compatflags2;
 }
 
+AActor* FLevelLocals::SelectActorFromTID(int tid, size_t index, AActor* defactor)
+{
+	if (tid == 0)
+		return defactor;
+
+	AActor* actor = nullptr;
+	size_t cur = 0u;
+	auto it = GetActorIterator(tid);
+	while ((actor = it.Next()) != nullptr)
+	{
+		if (cur == index)
+			return actor;
+		++cur;
+	}
+
+	return nullptr;
+}
+
 //==========================================================================
 // IsPointInMap
 //
diff --git a/src/g_levellocals.h b/src/g_levellocals.h
index cf63f81b2da..bb975e0eb4c 100644
--- a/src/g_levellocals.h
+++ b/src/g_levellocals.h
@@ -149,6 +149,7 @@ struct FLevelLocals
 	int GetCompatibility2(int mask);
 	void ApplyCompatibility();
 	void ApplyCompatibility2();
+	AActor* SelectActorFromTID(int tid, size_t index, AActor* defactor);
 
 	void Init();
 
diff --git a/src/playsim/p_acs.cpp b/src/playsim/p_acs.cpp
index d05f5dae3b5..89aee643d2d 100644
--- a/src/playsim/p_acs.cpp
+++ b/src/playsim/p_acs.cpp
@@ -4806,6 +4806,8 @@ enum EACSFunctions
 	ACSF_GetSectorHealth,
 	ACSF_GetLineHealth,
 	ACSF_SetSubtitleNumber,
+	ACSF_GetNetID,
+	ACSF_SetActivatorByNetID,
 
 		// Eternity's
 	ACSF_GetLineX = 300,
@@ -5380,6 +5382,13 @@ int DLevelScript::CallFunction(int argCount, int funcIndex, int32_t *args, int &
 			actor = Level->SingleActorFromTID(args[0], activator);
 			return actor != NULL? DoubleToACS(actor->Vel.Z) : 0;
 
+		case ACSF_GetNetID:
+			MIN_ARG_COUNT(2);
+			actor = Level->SelectActorFromTID(args[0], args[1], activator);
+			if (argCount > 2)
+				actor = COPY_AAPTREX(Level, actor, args[2]);
+			return actor != nullptr ? actor->GetNetworkID() : NetworkEntityManager::WorldNetID;
+
 		case ACSF_SetPointer:
 			MIN_ARG_COUNT(2);
 			if (activator)
@@ -5431,6 +5440,18 @@ int DLevelScript::CallFunction(int argCount, int funcIndex, int32_t *args, int &
 			}
 			return 0;
 
+		case ACSF_SetActivatorByNetID:
+			MIN_ARG_COUNT(1);
+			actor = dyn_cast<AActor>(NetworkEntityManager::GetNetworkEntity(args[0]));
+			if (argCount > 1)
+				actor = COPY_AAPTREX(Level, actor, args[1]);
+			if (actor != nullptr)
+			{
+				activator = actor;
+				return 1;
+			}
+			return 0;
+
 		case ACSF_GetActorViewHeight:
 			MIN_ARG_COUNT(1);
 			actor = Level->SingleActorFromTID(args[0], activator);