diff --git a/core/class_db.cpp b/core/class_db.cpp
index f5ddd9c7616..12310f61510 100644
--- a/core/class_db.cpp
+++ b/core/class_db.cpp
@@ -205,6 +205,7 @@ ClassDB::ClassInfo::ClassInfo() {
 	creation_func = NULL;
 	inherits_ptr = NULL;
 	disabled = false;
+	exposed = false;
 }
 ClassDB::ClassInfo::~ClassInfo() {
 }
@@ -1284,6 +1285,15 @@ bool ClassDB::is_class_enabled(StringName p_class) {
 	return !ti->disabled;
 }
 
+bool ClassDB::is_class_exposed(StringName p_class) {
+
+	OBJTYPE_RLOCK;
+
+	ClassInfo *ti = classes.getptr(p_class);
+	ERR_FAIL_COND_V(!ti, false);
+	return ti->exposed;
+}
+
 StringName ClassDB::get_category(const StringName &p_node) {
 
 	ERR_FAIL_COND_V(!classes.has(p_node), StringName());
diff --git a/core/class_db.h b/core/class_db.h
index f6b97748b04..5910a2ce01b 100644
--- a/core/class_db.h
+++ b/core/class_db.h
@@ -127,6 +127,7 @@ public:
 		StringName inherits;
 		StringName name;
 		bool disabled;
+		bool exposed;
 		Object *(*creation_func)();
 		ClassInfo();
 		~ClassInfo();
@@ -168,6 +169,7 @@ public:
 		ClassInfo *t = classes.getptr(T::get_class_static());
 		ERR_FAIL_COND(!t);
 		t->creation_func = &creator<T>;
+		t->exposed = true;
 		T::register_custom_data_to_otdb();
 	}
 
@@ -176,6 +178,9 @@ public:
 
 		GLOBAL_LOCK_FUNCTION;
 		T::initialize_class();
+		ClassInfo *t = classes.getptr(T::get_class_static());
+		ERR_FAIL_COND(!t);
+		t->exposed = true;
 		//nothing
 	}
 
@@ -193,6 +198,7 @@ public:
 		ClassInfo *t = classes.getptr(T::get_class_static());
 		ERR_FAIL_COND(!t);
 		t->creation_func = &_create_ptr_func<T>;
+		t->exposed = true;
 		T::register_custom_data_to_otdb();
 	}
 
@@ -347,6 +353,8 @@ public:
 	static void set_class_enabled(StringName p_class, bool p_enable);
 	static bool is_class_enabled(StringName p_class);
 
+	static bool is_class_exposed(StringName p_class);
+
 	static void add_resource_base_extension(const StringName &p_extension, const StringName &p_class);
 	static void get_resource_base_extensions(List<String> *p_extensions);
 	static void get_extensions_for_type(const StringName &p_class, List<String> *p_extensions);
diff --git a/core/register_core_types.cpp b/core/register_core_types.cpp
index 0e34a3eea56..c6d7cd44e8d 100644
--- a/core/register_core_types.cpp
+++ b/core/register_core_types.cpp
@@ -40,6 +40,7 @@
 #include "io/config_file.h"
 #include "io/http_client.h"
 #include "io/marshalls.h"
+#include "io/networked_multiplayer_peer.h"
 #include "io/packet_peer.h"
 #include "io/packet_peer_udp.h"
 #include "io/pck_packer.h"
@@ -109,6 +110,8 @@ void register_core_types() {
 
 	ClassDB::register_class<Object>();
 
+	ClassDB::register_virtual_class<Script>();
+
 	ClassDB::register_class<Reference>();
 	ClassDB::register_class<WeakRef>();
 	ClassDB::register_class<Resource>();
@@ -136,6 +139,7 @@ void register_core_types() {
 	ClassDB::register_virtual_class<IP>();
 	ClassDB::register_virtual_class<PacketPeer>();
 	ClassDB::register_class<PacketPeerStream>();
+	ClassDB::register_virtual_class<NetworkedMultiplayerPeer>();
 	ClassDB::register_class<MainLoop>();
 	//ClassDB::register_type<OptimizedSaver>();
 	ClassDB::register_class<Translation>();
@@ -185,6 +189,20 @@ void register_core_settings() {
 
 void register_core_singletons() {
 
+	ClassDB::register_class<ProjectSettings>();
+	ClassDB::register_virtual_class<IP>();
+	ClassDB::register_class<_Geometry>();
+	ClassDB::register_class<_ResourceLoader>();
+	ClassDB::register_class<_ResourceSaver>();
+	ClassDB::register_class<_OS>();
+	ClassDB::register_class<_Engine>();
+	ClassDB::register_class<_ClassDB>();
+	ClassDB::register_class<_Marshalls>();
+	ClassDB::register_class<TranslationServer>();
+	ClassDB::register_virtual_class<Input>();
+	ClassDB::register_class<InputMap>();
+	ClassDB::register_class<_JSON>();
+
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("ProjectSettings", ProjectSettings::get_singleton()));
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("IP", IP::get_singleton()));
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("Geometry", _Geometry::get_singleton()));
diff --git a/main/main.cpp b/main/main.cpp
index e06f423bfcc..c6d3c3f15c4 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -257,6 +257,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
 
 	translation_server = memnew(TranslationServer);
 	performance = memnew(Performance);
+	ClassDB::register_class<Performance>();
 	globals->add_singleton(ProjectSettings::Singleton("Performance", performance));
 
 	GLOBAL_DEF("debug/settings/crash_handler/message", String("Please include this when reporting the bug on https://github.com/godotengine/godot/issues"));
diff --git a/modules/mono/csharp_script.cpp b/modules/mono/csharp_script.cpp
index fe78ce423c1..b475782729a 100644
--- a/modules/mono/csharp_script.cpp
+++ b/modules/mono/csharp_script.cpp
@@ -654,6 +654,13 @@ void *CSharpLanguage::alloc_instance_binding_data(Object *p_object) {
 
 	StringName type_name = p_object->get_class_name();
 
+	// ¯\_(ツ)_/¯
+	const ClassDB::ClassInfo *classinfo = ClassDB::classes.getptr(type_name);
+	while (classinfo && !classinfo->exposed)
+		classinfo = classinfo->inherits_ptr;
+	ERR_FAIL_NULL_V(classinfo, NULL);
+	type_name = classinfo->name;
+
 	GDMonoClass *type_class = GDMonoUtils::type_get_proxy_class(type_name);
 
 	ERR_FAIL_NULL_V(type_class, NULL);
diff --git a/modules/mono/editor/bindings_generator.cpp b/modules/mono/editor/bindings_generator.cpp
index 123f00ea100..704910c5b98 100644
--- a/modules/mono/editor/bindings_generator.cpp
+++ b/modules/mono/editor/bindings_generator.cpp
@@ -133,12 +133,6 @@ static bool is_csharp_keyword(const String &p_name) {
 		   p_name == "virtual" || p_name == "volatile" || p_name == "void" || p_name == "while";
 }
 
-static bool is_singleton_black_listed(const String &p_type) {
-
-	return p_type == "IP_Unix" || p_type == "InputDefault" || p_type == "AudioServerSW" || p_type == "PhysicsServerSW" ||
-		   p_type == "Physics2DServerSW" || p_type == "SpatialSoundServerSW" || p_type == "SpatialSound2DServerSW";
-}
-
 inline static String escape_csharp_keyword(const String &p_name) {
 
 	return is_csharp_keyword(p_name) ? "@" + p_name : p_name;
@@ -247,9 +241,6 @@ void BindingsGenerator::_generate_header_icalls() {
 
 void BindingsGenerator::_generate_method_icalls(const TypeInterface &p_itype) {
 
-	if (p_itype.base_name.length() && obj_types[p_itype.base_name].is_singleton && is_singleton_black_listed(p_itype.name))
-		return;
-
 	for (const List<MethodInterface>::Element *E = p_itype.methods.front(); E; E = E->next()) {
 		const MethodInterface &imethod = E->get();
 
@@ -580,9 +571,6 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 
 	bool is_derived_type = itype.base_name.length();
 
-	if (is_derived_type && obj_types[itype.base_name].is_singleton && is_singleton_black_listed(itype.name))
-		return ERR_SKIP;
-
 	List<InternalCall> &custom_icalls = itype.api_type == ClassDB::API_EDITOR ? editor_custom_icalls : core_custom_icalls;
 
 	if (verbose_output)
@@ -1167,9 +1155,6 @@ Error BindingsGenerator::generate_glue(const String &p_output_dir) {
 	for (Map<String, TypeInterface>::Element *type_elem = obj_types.front(); type_elem; type_elem = type_elem->next()) {
 		const TypeInterface &itype = type_elem->get();
 
-		if (itype.base_name.length() && obj_types[itype.base_name].is_singleton && is_singleton_black_listed(itype.name))
-			continue;
-
 		List<InternalCall> &custom_icalls = itype.api_type == ClassDB::API_EDITOR ? editor_custom_icalls : core_custom_icalls;
 
 		OS::get_singleton()->print(String("Generating " + itype.name + "...\n").utf8());
@@ -1519,6 +1504,12 @@ void BindingsGenerator::_populate_object_type_interfaces() {
 		itype.is_reference = ClassDB::is_parent_class(type_cname, refclass_name);
 		itype.memory_own = itype.is_reference;
 
+		if (!ClassDB::is_class_exposed(type_cname)) {
+			WARN_PRINTS("Ignoring type " + String(type_cname) + " because it's not exposed");
+			class_list.pop_front();
+			continue;
+		}
+
 		itype.c_out = "\treturn ";
 		itype.c_out += C_METHOD_UNMANAGED_GET_MANAGED;
 		itype.c_out += itype.is_reference ? "(%1.ptr());\n" : "(%1);\n";
diff --git a/modules/mono/register_types.cpp b/modules/mono/register_types.cpp
index 2a84f0d1a63..2656de5b148 100644
--- a/modules/mono/register_types.cpp
+++ b/modules/mono/register_types.cpp
@@ -44,6 +44,7 @@ void register_mono_types() {
 
 	_godotsharp = memnew(_GodotSharp);
 
+	ClassDB::register_class<_GodotSharp>();
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("GodotSharp", _GodotSharp::get_singleton()));
 
 	script_language_cs = memnew(CSharpLanguage);
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index a85a0fb9f76..75268aad1f8 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -266,9 +266,11 @@ void register_scene_types() {
 	ClassDB::register_class<Control>();
 	ClassDB::register_class<Button>();
 	ClassDB::register_class<Label>();
+	ClassDB::register_class<ScrollBar>();
 	ClassDB::register_class<HScrollBar>();
 	ClassDB::register_class<VScrollBar>();
 	ClassDB::register_class<ProgressBar>();
+	ClassDB::register_class<Slider>();
 	ClassDB::register_class<HSlider>();
 	ClassDB::register_class<VSlider>();
 	ClassDB::register_class<Popup>();
@@ -352,6 +354,7 @@ void register_scene_types() {
 #ifndef _3D_DISABLED
 	ClassDB::register_class<BoneAttachment>();
 	ClassDB::register_virtual_class<VisualInstance>();
+	ClassDB::register_virtual_class<GeometryInstance>();
 	ClassDB::register_class<Camera>();
 	ClassDB::register_class<Listener>();
 	ClassDB::register_class<ARVRCamera>();
@@ -361,6 +364,7 @@ void register_scene_types() {
 	ClassDB::register_class<InterpolatedCamera>();
 	ClassDB::register_class<MeshInstance>();
 	ClassDB::register_class<ImmediateGeometry>();
+	ClassDB::register_virtual_class<SpriteBase3D>();
 	ClassDB::register_class<Sprite3D>();
 	ClassDB::register_class<AnimatedSprite3D>();
 	ClassDB::register_virtual_class<Light>();
@@ -380,6 +384,7 @@ void register_scene_types() {
 	OS::get_singleton()->yield(); //may take time to init
 
 	ClassDB::register_virtual_class<CollisionObject>();
+	ClassDB::register_virtual_class<PhysicsBody>();
 	ClassDB::register_class<StaticBody>();
 	ClassDB::register_class<RigidBody>();
 	ClassDB::register_class<KinematicCollision>();
@@ -494,6 +499,7 @@ void register_scene_types() {
 
 	OS::get_singleton()->yield(); //may take time to init
 
+	ClassDB::register_virtual_class<Shape>();
 	ClassDB::register_class<RayShape>();
 	ClassDB::register_class<SphereShape>();
 	ClassDB::register_class<BoxShape>();
@@ -531,6 +537,7 @@ void register_scene_types() {
 	ClassDB::register_class<DynamicFontData>();
 	ClassDB::register_class<DynamicFont>();
 
+	ClassDB::register_virtual_class<StyleBox>();
 	ClassDB::register_class<StyleBoxEmpty>();
 	ClassDB::register_class<StyleBoxTexture>();
 	ClassDB::register_class<StyleBoxFlat>();
diff --git a/servers/register_server_types.cpp b/servers/register_server_types.cpp
index 845a3443b75..1aee2144aa3 100644
--- a/servers/register_server_types.cpp
+++ b/servers/register_server_types.cpp
@@ -79,6 +79,12 @@ ARVRServer *arvr_server = NULL;
 void register_server_types() {
 	arvr_server = memnew(ARVRServer);
 
+	ClassDB::register_virtual_class<VisualServer>();
+	ClassDB::register_class<AudioServer>();
+	ClassDB::register_virtual_class<PhysicsServer>();
+	ClassDB::register_virtual_class<Physics2DServer>();
+	ClassDB::register_class<ARVRServer>();
+
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("VisualServer", VisualServer::get_singleton()));
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("AudioServer", AudioServer::get_singleton()));
 	ProjectSettings::get_singleton()->add_singleton(ProjectSettings::Singleton("PhysicsServer", PhysicsServer::get_singleton()));
@@ -95,6 +101,8 @@ void register_server_types() {
 	ClassDB::register_virtual_class<AudioStreamPlayback>();
 	ClassDB::register_class<AudioStreamRandomPitch>();
 	ClassDB::register_virtual_class<AudioEffect>();
+	ClassDB::register_class<AudioEffectEQ>();
+	ClassDB::register_class<AudioEffectFilter>();
 	ClassDB::register_class<AudioBusLayout>();
 
 	{