diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index d0ae6ad..0000000
--- a/.gitmodules
+++ /dev/null
@@ -1,8 +0,0 @@
-[submodule "dependencies/union-api"]
-	path = dependencies/union-api
-	url = https://gitlab.com/union-framework/union-api.git
-[submodule ".\\dependencies\\union-api"]
-	url = https://gitlab.com/union-framework/union-api.git
-[submodule "dependencies/gothic-api"]
-	path = dependencies/gothic-api
-	url = https://gitlab.com/union-framework/gothic-api
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8245fed..833d98e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,8 +5,7 @@ project(zBassMusic VERSION ${PROJECT_VERSION_CMAKE})
 
 option(BUILD_VDF "Build .VDF file with plugin" ON)
 
-set(UNION_API_DIR "${CMAKE_SOURCE_DIR}/dependencies/union-api")
-set(GOTHIC_API_DIR "${CMAKE_SOURCE_DIR}/dependencies/gothic-api")
+set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
 set(BASS_DIR "${CMAKE_SOURCE_DIR}/dependencies/bass")
 set(VDF_DIR "${CMAKE_SOURCE_DIR}/vdf")
 set(GOTHIC_USERAPI_DIR "${CMAKE_SOURCE_DIR}/gothic-userapi")
@@ -17,8 +16,24 @@ if (${CMAKE_BUILD_RELEASE_PDB})
     set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG /OPT:REF /OPT:ICF")
 endif ()
 
-include(cmake/union-api.cmake)
-include(cmake/gothic-api.cmake)
+include(FetchContent)
+set(GOTHIC_API_G1  ON)
+set(GOTHIC_API_G1A ON)
+set(GOTHIC_API_G2  ON)
+set(GOTHIC_API_G2A ON)
+FetchContent_Declare(
+        union-api
+        GIT_REPOSITORY https://gitlab.com/union-framework/union-api.git
+        GIT_TAG        ede619be94cb6a7349c43b6678748ad1113a8c56
+)
+FetchContent_Declare(
+        gothic-api
+        GIT_REPOSITORY https://gitlab.com/union-framework/gothic-api.git
+        GIT_TAG        ba0894b136eda163209ef58a7dad07103cb2ed10
+)
+FetchContent_MakeAvailable(union-api)
+FetchContent_MakeAvailable(gothic-api)
+
 include(cmake/bass.cmake)
 
 add_library(plugin SHARED)
@@ -35,16 +50,19 @@ configure_file("${CMAKE_CURRENT_SOURCE_DIR}/version.rc.in" "${CMAKE_CURRENT_BINA
 configure_file("${CMAKE_SOURCE_DIR}/vdf/script.vdfs.in" "${CMAKE_BINARY_DIR}/script.vdfs")
 configure_file("${CMAKE_SOURCE_DIR}/src/BuildInfo.h.in" "${CMAKE_BINARY_DIR}/src/BuildInfo.h" @ONLY)
 
-file(GLOB_RECURSE PLUGIN_SOURCES "src/**.cpp" "${UNION_API_DIR}/union-api/Union/Memory.cpp")
+file(GLOB_RECURSE PLUGIN_SOURCES "src/**.cpp")
 target_sources(plugin PRIVATE ${PLUGIN_SOURCES} "${CMAKE_CURRENT_BINARY_DIR}/version.rc")
 
-add_compile_options(plugin PRIVATE /W4 /WX)
-target_compile_definitions(plugin PRIVATE _UNION_API_DLL __G1 __G1A __G2 __G2A)
+target_compile_options(plugin PRIVATE
+        /W4 /WX /permissive- /Zc:__cplusplus /Zc:preprocessor /utf-8
+        /experimental:external /external:W0 /external:anglebrackets /external:templates-
+        /external:I ${CMAKE_BINARY_DIR}/_deps
+)
+
 target_include_directories(plugin PRIVATE "src/" "${CMAKE_BINARY_DIR}/src/")
-target_link_libraries(plugin PRIVATE union-api gothic-api bass_all)
+target_link_libraries(plugin PRIVATE union_api_lib gothic_api bass_all)
 
 install(FILES $<TARGET_RUNTIME_DLLS:plugin> "${CMAKE_BINARY_DIR}/zBassMusic.dll" TYPE BIN)
-install(FILES $<TARGET_RUNTIME_DLLS:plugin> "${CMAKE_BINARY_DIR}/UnionAPI.dll" TYPE BIN)
 if (${BUILD_VDF})
     install(FILES "${CMAKE_BINARY_DIR}/script.vdfs" DESTINATION "${CMAKE_INSTALL_PREFIX}")
     install(SCRIPT "${VDF_DIR}/vdf.cmake")
@@ -70,7 +88,6 @@ endif ()
 if (DEFINED ENV{COPY_DLL_TARGET})
     add_custom_target(copy_dll ALL
             COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/zBassMusic.dll" "$ENV{COPY_DLL_TARGET}/Autorun/zBassMusic.dll"
-            COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/UnionAPI.dll" "$ENV{COPY_DLL_TARGET}/Autorun/UnionAPI.dll"
             COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/dependencies/bass/lib/bass.dll" "$ENV{COPY_DLL_TARGET}/bass.dll"
             COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/dependencies/bass/lib/bassmidi.dll" "$ENV{COPY_DLL_TARGET}/bassmidi.dll"
             COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/dependencies/bass/lib/bassopus.dll" "$ENV{COPY_DLL_TARGET}/bassopus.dll"
diff --git a/cmake/gothic-api.cmake b/cmake/gothic-api.cmake
deleted file mode 100644
index bfff530..0000000
--- a/cmake/gothic-api.cmake
+++ /dev/null
@@ -1,8 +0,0 @@
-add_library(gothic-api INTERFACE IMPORTED)
-target_include_directories(gothic-api INTERFACE
-        "${GOTHIC_USERAPI_DIR}"
-        "${GOTHIC_API_DIR}"
-        "${GOTHIC_API_DIR}/ZenGin/Gothic_UserAPI"
-)
-target_link_directories(gothic-api INTERFACE "${GOTHIC_API_DIR}")
-target_sources(gothic-api INTERFACE "${GOTHIC_API_DIR}/ZenGin/zGothicAPI.cpp")
\ No newline at end of file
diff --git a/cmake/union-api.cmake b/cmake/union-api.cmake
deleted file mode 100644
index c349138..0000000
--- a/cmake/union-api.cmake
+++ /dev/null
@@ -1,20 +0,0 @@
-add_library(union-api SHARED)
-set_target_properties(union-api PROPERTIES
-        OUTPUT_NAME "UnionAPI"
-        LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
-        RUNTIME_OUTPUT_DIRECTORY_DEBUG "${CMAKE_BINARY_DIR}"
-        RUNTIME_OUTPUT_DIRECTORY_RELEASE "${CMAKE_BINARY_DIR}")
-
-target_include_directories(union-api PUBLIC "${UNION_API_DIR}/union-api")
-target_link_directories(union-api PUBLIC "${UNION_API_DIR}/union-api")
-
-file(GLOB_RECURSE UNION_SOURCES "${UNION_API_DIR}/union-api/union-api.cpp" "${UNION_API_DIR}/union-api/Union/Memory.cpp")
-target_sources(union-api PRIVATE ${UNION_SOURCES})
-
-if ("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
-    target_compile_definitions(union-api PUBLIC WIN32 _DEBUG _CONSOLE _UNION_API_DLL PRIVATE _UNION_API_BUILD)
-elseif ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
-    target_compile_definitions(union-api PUBLIC WIN32 NDEBUG _CONSOLE _UNION_API_DLL PRIVATE _UNION_API_BUILD)
-else ()
-    message(FATAL_ERROR "Invalid $CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} not in range [Debug, Release]")
-endif ()
\ No newline at end of file
diff --git a/dependencies/gothic-api b/dependencies/gothic-api
deleted file mode 160000
index 102f42a..0000000
--- a/dependencies/gothic-api
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 102f42aaf6fe2f2c9c296f8ec66ee8fcde08d646
diff --git a/dependencies/union-api b/dependencies/union-api
deleted file mode 160000
index f492eb0..0000000
--- a/dependencies/union-api
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f492eb06395ebb036c4171aa897c11e619007d41
diff --git a/src/Gothic/BassLoader.hpp b/src/Gothic/BassLoader.hpp
index dbe03b1..8bd36a0 100644
--- a/src/Gothic/BassLoader.hpp
+++ b/src/Gothic/BassLoader.hpp
@@ -120,8 +120,8 @@ namespace GOTHIC_NAMESPACE
 
             ForEachClass<BassMusicTheme>(
                     Globals->BassMusicThemeClassName,
-                    [&]() { return m_BassThemeInstances.emplace_back(new BassMusicTheme{}); },
-                    [&](const BassMusicTheme* input, const zCPar_Symbol* symbol) {
+                    [&] { return m_BassThemeInstances.emplace_back(new BassMusicTheme{}); },
+                    [&](const BassMusicTheme* input, [[maybe_unused]] const zCPar_Symbol* symbol) {
                         const auto theme = std::make_shared<NH::Bass::MusicTheme>(input->Name.ToChar());
                         theme->SetAudioEffects(NH::Bass::AudioFile::DEFAULT, []([[maybe_unused]] const NH::Bass::AudioEffects& effects) {});
                         for (auto zones = NH::String(input->Zones.ToChar()).Split(","); auto& zone: zones)
@@ -134,7 +134,7 @@ namespace GOTHIC_NAMESPACE
 
             ForEachClass<BassMusicThemeAudio>(
                     Globals->BassMusicThemeAudioClassName,
-                    [&]() { return m_BassThemeAudioInstances.emplace_back(new BassMusicThemeAudio{}); },
+                    [&] { return m_BassThemeAudioInstances.emplace_back(new BassMusicThemeAudio{}); },
                     [&](const BassMusicThemeAudio* input, const zCPar_Symbol* symbol) {
                         const std::shared_ptr<NH::Bass::MusicTheme> theme = NH::Bass::Engine::GetInstance()->GetMusicManager().GetTheme(input->Theme.ToChar());
                         if (!theme) {
diff --git a/src/Gothic/CMusicSys_Bass.hpp b/src/Gothic/CMusicSys_Bass.hpp
index 70ad632..359202e 100644
--- a/src/Gothic/CMusicSys_Bass.hpp
+++ b/src/Gothic/CMusicSys_Bass.hpp
@@ -2,7 +2,7 @@ namespace GOTHIC_NAMESPACE
 {
     namespace BassEvent
     {
-        inline void Event_OnEnd(const NH::Bass::Event& event, void* userData)
+        inline void Event_OnEnd(const NH::Bass::Event& event, [[maybe_unused]] void* userData)
         {
             static NH::Logger* log = NH::CreateLogger("zBassMusic::Event_OnEnd");
 
@@ -20,7 +20,7 @@ namespace GOTHIC_NAMESPACE
             }
         }
 
-        inline void Event_OnTransition(const NH::Bass::Event& event, void* userData)
+        inline void Event_OnTransition(const NH::Bass::Event& event, [[maybe_unused]] void* userData)
         {
             static NH::Logger* log = NH::CreateLogger("zBassMusic::Event_OnTransition");
 
@@ -38,7 +38,7 @@ namespace GOTHIC_NAMESPACE
             }
         }
 
-        inline void Event_OnChange(const NH::Bass::Event& event, void* userData)
+        inline void Event_OnChange(const NH::Bass::Event& event, [[maybe_unused]] void* userData)
         {
             static NH::Logger* log = NH::CreateLogger("zBassMusic::Event_OnChange");
 
@@ -72,14 +72,14 @@ namespace GOTHIC_NAMESPACE
         {
             static constexpr std::string_view validExt{ ".sgt" };
 
-            if (file.Length() < validExt.size())
+            if (static_cast<uint32_t>(file.Length()) < validExt.size())
             {
                 return false;
             }
 
             const auto fileLen = static_cast<size_t>(file.Length());
             const auto extStart = fileLen - validExt.size();
-            const std::string_view fileExt{ std::next(file.ToChar(), static_cast<uint32_t>(extStart)), validExt.size() };
+            const std::string_view fileExt{ std::next(file.ToChar(), extStart), validExt.size() };
 
             auto toLowerSimple = [](const char t_char)
             {
@@ -177,7 +177,7 @@ namespace GOTHIC_NAMESPACE
             }
         }
 
-        void PlayTheme(zCMusicTheme* theme, float const& volume, zTMus_TransType const& transition, zTMus_TransSubType const& subTransition) override
+        void PlayTheme(zCMusicTheme* theme, float const& themeVolume, zTMus_TransType const& transition, zTMus_TransSubType const& subTransition) override
         {
             if (theme == nullptr) {
                 log->Error("PlayTheme illegal argument: theme == nullptr");
@@ -190,7 +190,7 @@ namespace GOTHIC_NAMESPACE
             {
                 m_BassEngine->StopMusic();
                 m_ActiveTheme = theme;
-                m_DirectMusic->PlayTheme(theme, volume, transition, subTransition);
+                m_DirectMusic->PlayTheme(theme, themeVolume, transition, subTransition);
                 return;
             }
 
@@ -231,10 +231,10 @@ namespace GOTHIC_NAMESPACE
             return m_BassEngine->GetVolume();
         }
 
-        void SetVolume(const float volume) override
+        void SetVolume(const float masterVolume) override
         {
-            m_BassEngine->SetVolume(volume);
-            m_DirectMusic->SetVolume(volume);
+            m_BassEngine->SetVolume(masterVolume);
+            m_DirectMusic->SetVolume(masterVolume);
         }
 
         int IsAvailable(zSTRING const& id) override
diff --git a/src/NH/Bass/Channel.cpp b/src/NH/Bass/Channel.cpp
index 8e8b58e..12d4660 100644
--- a/src/NH/Bass/Channel.cpp
+++ b/src/NH/Bass/Channel.cpp
@@ -77,7 +77,7 @@ namespace NH::Bass
 
     void Channel::OnPosition(const double position, const std::function<void()>& callback)
     {
-        const size_t positionBytes = BASS_ChannelSeconds2Bytes(m_Stream, position);
+        const int64_t positionBytes = BASS_ChannelSeconds2Bytes(m_Stream, position);
         BASS_ChannelSetSync(m_Stream, BASS_SYNC_POS, positionBytes, OnPositionSyncCallFunction, new OnSyncPosition{m_Stream, callback});
     }
 
@@ -89,7 +89,7 @@ namespace NH::Bass
     void Channel::BeforeAudioEnds(const double aheadSeconds, const std::function<void(double)>& onFinish)
     {
         const double position = Length() - aheadSeconds;
-        const size_t positionBytes = BASS_ChannelSeconds2Bytes(m_Stream, position);
+        const int64_t positionBytes = BASS_ChannelSeconds2Bytes(m_Stream, position);
         BASS_ChannelSetSync(m_Stream, BASS_SYNC_POS, positionBytes, BeforeAudioEndsSyncCallFunction, new OnSyncBeforeAudioEndsData{m_Stream, onFinish});
     }
 
@@ -131,7 +131,7 @@ namespace NH::Bass
         return -1;
     }
 
-    void Channel::OnPositionSyncCallFunction(HSYNC, const DWORD channel, DWORD data, void* userData)
+    void Channel::OnPositionSyncCallFunction(HSYNC, const DWORD channel, [[maybe_unused]] DWORD data, void* userData)
     {
         const auto* payload = static_cast<OnSyncWhenAudioEndsData*>(userData);
         if (channel != payload->Channel) return;
@@ -139,13 +139,13 @@ namespace NH::Bass
         else { CreateLogger("HSYNC::OnPositionSyncCallFunction")->Error("onFinish is nullptr"); }
     }
 
-    void Channel::OnSlideVolumeSyncCallFunction(HSYNC, DWORD channel, DWORD data, void* userData)
+    void Channel::OnSlideVolumeSyncCallFunction(HSYNC, [[maybe_unused]] DWORD channel, [[maybe_unused]] DWORD data, void* userData)
     {
         if (const auto* onFinish = static_cast<std::function<void()>*>(userData)) { (*onFinish)(); }
         else { CreateLogger("HSYNC::OnSlideVolumeSyncCallFunction")->Error("onFinish is nullptr"); }
     }
 
-    void Channel::OnAudioEndSyncCallFunction(HSYNC, const DWORD channel, DWORD data, void* userData)
+    void Channel::OnAudioEndSyncCallFunction(HSYNC, const DWORD channel, [[maybe_unused]] DWORD data, void* userData)
     {
         const auto* payload = static_cast<OnSyncWhenAudioEndsData*>(userData);
         if (channel != payload->Channel) return;
@@ -153,7 +153,7 @@ namespace NH::Bass
         else { CreateLogger("HSYNC::OnAudioEndSyncCallFunction")->Error("onFinish is nullptr"); }
     }
 
-    void Channel::BeforeAudioEndsSyncCallFunction(HSYNC, const DWORD channel, DWORD data, void* userData)
+    void Channel::BeforeAudioEndsSyncCallFunction(HSYNC, const DWORD channel, [[maybe_unused]] DWORD data, void* userData)
     {
         const auto* payload = static_cast<OnSyncBeforeAudioEndsData*>(userData);
         if (channel != payload->Channel) return;
diff --git a/src/NH/Bass/Engine.cpp b/src/NH/Bass/Engine.cpp
index d158441..04f33fd 100644
--- a/src/NH/Bass/Engine.cpp
+++ b/src/NH/Bass/Engine.cpp
@@ -34,7 +34,7 @@ namespace NH::Bass
 
         m_CommandQueue.Update(*this);
 
-        BASS_Update(delta);
+        BASS_Update(static_cast<int32_t>(delta));
         GetEM().Update();
     }
 
diff --git a/src/NH/Bass/MusicTheme.cpp b/src/NH/Bass/MusicTheme.cpp
index d12fe50..995950d 100644
--- a/src/NH/Bass/MusicTheme.cpp
+++ b/src/NH/Bass/MusicTheme.cpp
@@ -337,9 +337,9 @@ namespace NH::Bass
 
     std::shared_ptr<IChannel> MusicTheme::GetAcquiredChannel() const
     {
-        for (const auto& channel: m_AcquiredChannels)
+        if (m_AcquiredChannels.size() > 0)
         {
-            return channel;
+            return m_AcquiredChannels[0];
         }
         return {};
     }
@@ -356,7 +356,7 @@ namespace NH::Bass
     std::string MusicTheme::ToString() const
     {
         std::string result = "MusicTheme{ \n\tName: " + m_Name + ", \n\tAudioFiles: {\n";
-        int i = 0;
+        size_t i = 0;
         for (auto& [type, audioFile]: m_AudioFiles)
         {
             result += "\t\t" + type + ": " + String(audioFile.ToString().c_str()).Replace("\n", "\n\tt").ToChar();
diff --git a/src/NH/Logger.h b/src/NH/Logger.h
index e44ed8e..377c41f 100644
--- a/src/NH/Logger.h
+++ b/src/NH/Logger.h
@@ -107,7 +107,7 @@ namespace NH
         template<class T>
         T* GetAdapter() const
         {
-            for (int i = 0; i < m_Adapters.GetCount(); i++)
+            for (size_t i = 0; i < m_Adapters.GetCount(); i++)
             {
                 ILoggerAdapter* adapter = m_Adapters[i];
                 if (T* ptr = dynamic_cast<T*>(adapter))
diff --git a/vdf/vdf.cmake b/vdf/vdf.cmake
index c0059ff..21aee18 100644
--- a/vdf/vdf.cmake
+++ b/vdf/vdf.cmake
@@ -1,6 +1,5 @@
 file(MAKE_DIRECTORY "${CMAKE_INSTALL_PREFIX}/vdf/System/Autorun")
 file(COPY "${CMAKE_INSTALL_PREFIX}/bin/zBassMusic.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/vdf/System/Autorun")
-file(COPY "${CMAKE_INSTALL_PREFIX}/bin/UnionAPI.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/vdf/System/Autorun")
 file(COPY "${CMAKE_INSTALL_PREFIX}/bin/bass.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/vdf/System/Autorun")
 file(COPY "${CMAKE_INSTALL_PREFIX}/bin/bassmidi.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/vdf/System/Autorun")
 file(COPY "${CMAKE_INSTALL_PREFIX}/bin/bassflac.dll" DESTINATION "${CMAKE_INSTALL_PREFIX}/vdf/System/Autorun")