diff --git a/src/core/file_format/playgo_chunk.cpp b/src/core/file_format/playgo_chunk.cpp
index 43d8a4de..a430b1ac 100644
--- a/src/core/file_format/playgo_chunk.cpp
+++ b/src/core/file_format/playgo_chunk.cpp
@@ -1,16 +1,75 @@
 // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/io_file.h"
-
 #include "playgo_chunk.h"
 
-bool PlaygoChunk::Open(const std::filesystem::path& filepath) {
+bool PlaygoFile::Open(const std::filesystem::path& filepath) {
     Common::FS::IOFile file(filepath, Common::FS::FileAccessMode::Read);
-    if (!file.IsOpen()) {
-        return false;
+    if (file.IsOpen()) {
+        file.Read(playgoHeader);
+        if (LoadChunks(file)) {
+            return true;
+        }
     }
-    file.Read(playgoHeader);
+    return false;
+}
 
-    return true;
+bool PlaygoFile::LoadChunks(const Common::FS::IOFile& file) {
+    if (file.IsOpen()) {
+        if (playgoHeader.magic == PLAYGO_MAGIC) {
+            bool ret = true;
+
+            std::string chunk_attrs_data, chunk_mchunks_data, chunk_labels_data, mchunk_attrs_data;
+            ret = ret && load_chunk_data(file, playgoHeader.chunk_attrs, chunk_attrs_data);
+            ret = ret && load_chunk_data(file, playgoHeader.chunk_mchunks, chunk_mchunks_data);
+            ret = ret && load_chunk_data(file, playgoHeader.chunk_labels, chunk_labels_data);
+            ret = ret && load_chunk_data(file, playgoHeader.mchunk_attrs, mchunk_attrs_data);
+
+            if (ret) {
+                chunks.resize(playgoHeader.chunk_count);
+
+                auto chunk_attrs =
+                    reinterpret_cast<playgo_chunk_attr_entry_t*>(&chunk_attrs_data[0]);
+                auto chunk_mchunks = reinterpret_cast<u16*>(&chunk_mchunks_data[0]);
+                auto chunk_labels = reinterpret_cast<char*>(&chunk_labels_data[0]);
+                auto mchunk_attrs =
+                    reinterpret_cast<playgo_mchunk_attr_entry_t*>(&mchunk_attrs_data[0]);
+
+                for (u16 i = 0; i < playgoHeader.chunk_count; i++) {
+                    chunks[i].req_locus = chunk_attrs[i].req_locus;
+                    chunks[i].language_mask = chunk_attrs[i].language_mask;
+                    chunks[i].label_name = std::string(chunk_labels + chunk_attrs[i].label_offset);
+
+                    u64 total_size = 0;
+                    u16 mchunk_count = chunk_attrs[i].mchunk_count;
+                    if (mchunk_count != 0) {
+                        auto mchunks = reinterpret_cast<u16*>(
+                            ((u8*)chunk_mchunks + chunk_attrs[i].mchunks_offset));
+                        for (u16 j = 0; j < mchunk_count; j++) {
+                            u16 mchunk_id = mchunks[j];
+                            total_size += mchunk_attrs[mchunk_id].size.size;
+                        }
+                    }
+                    chunks[i].total_size = total_size;
+                }
+            }
+
+            return ret;
+        }
+    }
+    return false;
+}
+
+bool PlaygoFile::load_chunk_data(const Common::FS::IOFile& file, const chunk_t& chunk,
+                                 std::string& data) {
+    if (file.IsOpen()) {
+        if (file.Seek(chunk.offset)) {
+            data.resize(chunk.length);
+            if (data.size() == chunk.length) {
+                file.ReadRaw<char>(&data[0], chunk.length);
+                return true;
+            }
+        }
+    }
+    return false;
 }
\ No newline at end of file
diff --git a/src/core/file_format/playgo_chunk.h b/src/core/file_format/playgo_chunk.h
index d17d24bf..439e27d0 100644
--- a/src/core/file_format/playgo_chunk.h
+++ b/src/core/file_format/playgo_chunk.h
@@ -3,29 +3,129 @@
 
 #pragma once
 #include <filesystem>
-#include "common/types.h"
+#include <mutex>
+#include <vector>
+#include "common/io_file.h"
+#include "core/libraries/playgo/playgo_types.h"
+
+constexpr u32 PLAYGO_MAGIC = 0x6F676C70;
+
+struct chunk_t {
+    u32 offset;
+    u32 length;
+} __attribute__((packed));
 
 struct PlaygoHeader {
     u32 magic;
 
     u16 version_major;
     u16 version_minor;
-    u16 image_count;
+    u16 image_count;    // [0;1]
+    u16 chunk_count;    // [0;1000]
+    u16 mchunk_count;   // [0;8000]
+    u16 scenario_count; // [0;32]
+
+    u32 file_size;
+    u16 default_scenario_id;
+    u16 attrib;
+    u32 sdk_version;
+    u16 disc_count; // [0;2] (if equals to 0 then disc count = 1)
+    u16 layer_bmp;
+
+    u8 reserved[32];
+    char content_id[128];
+
+    chunk_t chunk_attrs; // [0;32000]
+    chunk_t chunk_mchunks;
+    chunk_t chunk_labels;   // [0;16000]
+    chunk_t mchunk_attrs;   // [0;12800]
+    chunk_t scenario_attrs; // [0;1024]
+    chunk_t scenario_chunks;
+    chunk_t scenario_labels;
+    chunk_t inner_mchunk_attrs; // [0;12800]
+} __attribute__((packed));
+
+struct playgo_scenario_attr_entry_t {
+    u8 _type;
+    u8 _unk[19];
+    u16 initial_chunk_count;
     u16 chunk_count;
+    u32 chunks_offset; //<-scenario_chunks
+    u32 label_offset;  //<-scenario_labels
+} __attribute__((packed));
+
+struct image_disc_layer_no_t {
+    u8 layer_no : 2;
+    u8 disc_no : 2;
+    u8 image_no : 4;
+} __attribute__((packed));
+
+struct playgo_chunk_attr_entry_t {
+    u8 flag;
+    image_disc_layer_no_t image_disc_layer_no;
+    u8 req_locus;
+    u8 unk[11];
     u16 mchunk_count;
-    u16 scenario_count;
-    // TODO fill the rest
+    u64 language_mask;
+    u32 mchunks_offset; //<-chunk_mchunks
+    u32 label_offset;   //<-chunk_labels
+} __attribute__((packed));
+
+struct playgo_chunk_loc_t {
+    u64 offset : 48;
+    u64 _align1 : 8;
+    u64 image_no : 4;
+    u64 _align2 : 4;
+} __attribute__((packed));
+
+struct playgo_chunk_size_t {
+    u64 size : 48;
+    u64 _align : 16;
+} __attribute__((packed));
+
+struct playgo_mchunk_attr_entry_t {
+    playgo_chunk_loc_t loc;
+    playgo_chunk_size_t size;
+} __attribute__((packed));
+
+struct PlaygoChunk {
+    u64 req_locus;
+    u64 language_mask;
+    u64 total_size;
+    std::string label_name;
 };
-class PlaygoChunk {
+
+class PlaygoFile {
 public:
-    PlaygoChunk() = default;
-    ~PlaygoChunk() = default;
+    bool initialized;
+    OrbisPlayGoHandle handle;
+    OrbisPlayGoChunkId id;
+    OrbisPlayGoLocus locus;
+    OrbisPlayGoInstallSpeed speed;
+    s64 speed_tick;
+    OrbisPlayGoEta eta;
+    OrbisPlayGoLanguageMask langMask;
+    std::vector<PlaygoChunk> chunks;
+
+public:
+    PlaygoFile()
+        : initialized(false), handle(0), id(0), locus(0), speed(ORBIS_PLAYGO_INSTALL_SPEED_TRICKLE),
+          speed_tick(0), eta(0), langMask(0), playgoHeader{0} {}
+    ~PlaygoFile() = default;
 
     bool Open(const std::filesystem::path& filepath);
-    PlaygoHeader GetPlaygoHeader() {
+    bool LoadChunks(const Common::FS::IOFile& file);
+    PlaygoHeader& GetPlaygoHeader() {
         return playgoHeader;
     }
+    std::mutex& GetSpeedMutex() {
+        return speed_mutex;
+    }
+
+private:
+    bool load_chunk_data(const Common::FS::IOFile& file, const chunk_t& chunk, std::string& data);
 
 private:
     PlaygoHeader playgoHeader;
-};
\ No newline at end of file
+    std::mutex speed_mutex;
+};
diff --git a/src/core/libraries/playgo/playgo.cpp b/src/core/libraries/playgo/playgo.cpp
index af98253f..66422dc2 100644
--- a/src/core/libraries/playgo/playgo.cpp
+++ b/src/core/libraries/playgo/playgo.cpp
@@ -6,6 +6,7 @@
 #include "common/singleton.h"
 #include "core/libraries/error_codes.h"
 #include "core/libraries/libs.h"
+#include "core/libraries/system/systemservice.h"
 #include "playgo.h"
 
 namespace Libraries::PlayGo {
@@ -20,42 +21,129 @@ s32 PS4_SYSV_ABI sceDbgPlayGoSnapshot() {
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI scePlayGoClose() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+s32 PS4_SYSV_ABI scePlayGoClose(OrbisPlayGoHandle handle) {
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI scePlayGoGetChunkId() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+s32 PS4_SYSV_ABI scePlayGoGetChunkId(OrbisPlayGoHandle handle, OrbisPlayGoChunkId* outChunkIdList,
+                                     u32 numberOfEntries, u32* outEntries) {
+    LOG_INFO(Lib_PlayGo, "called");
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (outEntries == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (outChunkIdList != nullptr && numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+
+    if (playgo->GetPlaygoHeader().file_size == 0) {
+        *outEntries = 0;
+    } else {
+        if (outChunkIdList == nullptr) {
+            *outEntries = playgo->chunks.size();
+        } else {
+            if (numberOfEntries > playgo->chunks.size()) {
+                numberOfEntries = playgo->chunks.size();
+            }
+
+            if (numberOfEntries != 0) {
+                for (u32 i = 0; i < numberOfEntries; i++) {
+                    outChunkIdList[i] = i;
+                }
+                *outEntries = numberOfEntries;
+            }
+        }
+    }
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI scePlayGoGetEta() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+s32 PS4_SYSV_ABI scePlayGoGetEta(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
+                                 u32 numberOfEntries, OrbisPlayGoEta* outEta) {
+    LOG_INFO(Lib_PlayGo, "called");
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (chunkIds == nullptr || outEta == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+
+    *outEta = 0; // all is loaded
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI scePlayGoGetInstallSpeed() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+s32 PS4_SYSV_ABI scePlayGoGetInstallSpeed(OrbisPlayGoHandle handle,
+                                          OrbisPlayGoInstallSpeed* outSpeed) {
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (outSpeed == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+
+    std::scoped_lock lk{playgo->GetSpeedMutex()};
+
+    if (playgo->speed == 0) {
+        using namespace std::chrono;
+        if ((duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count() -
+             playgo->speed_tick) > 30 * 1000) { // 30sec
+            playgo->speed = ORBIS_PLAYGO_INSTALL_SPEED_TRICKLE;
+        }
+    }
+    *outSpeed = playgo->speed;
+
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoGetLanguageMask(OrbisPlayGoHandle handle,
-                                          OrbisPlayGoLanguageMask* languageMask) {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
-    *languageMask = 1; // En, todo;
+                                          OrbisPlayGoLanguageMask* outLanguageMask) {
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (outLanguageMask == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+
+    *outLanguageMask = playgo->langMask;
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoGetLocus(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
                                    uint32_t numberOfEntries, OrbisPlayGoLocus* outLoci) {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called handle = {}, chunkIds = {}, numberOfEntries = {}",
-              handle, *chunkIds, numberOfEntries);
+    LOG_INFO(Lib_PlayGo, "called handle = {}, chunkIds = {}, numberOfEntries = {}", handle,
+             *chunkIds, numberOfEntries);
 
-    auto* playgo = Common::Singleton<PlaygoChunk>::Instance();
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (chunkIds == nullptr || outLoci == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+    if (playgo->GetPlaygoHeader().file_size == 0)
+        return ORBIS_PLAYGO_ERROR_NOT_SUPPORT_PLAYGO;
 
     for (uint32_t i = 0; i < numberOfEntries; i++) {
-        if (chunkIds[i] <= playgo->GetPlaygoHeader().mchunk_count) {
+        if (chunkIds[i] <= playgo->chunks.size()) {
             outLoci[i] = OrbisPlayGoLocusValue::ORBIS_PLAYGO_LOCUS_LOCAL_FAST;
         } else {
             outLoci[i] = ORBIS_PLAYGO_LOCUS_NOT_DOWNLOADED;
@@ -67,64 +155,202 @@ s32 PS4_SYSV_ABI scePlayGoGetLocus(OrbisPlayGoHandle handle, const OrbisPlayGoCh
 
 s32 PS4_SYSV_ABI scePlayGoGetProgress(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
                                       uint32_t numberOfEntries, OrbisPlayGoProgress* outProgress) {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called handle = {}, chunkIds = {}, numberOfEntries = {}",
-              handle, *chunkIds, numberOfEntries);
-    outProgress->progressSize = 0x10000; // todo?
-    outProgress->totalSize = 0x10000;
+    LOG_INFO(Lib_PlayGo, "called handle = {}, chunkIds = {}, numberOfEntries = {}", handle,
+             *chunkIds, numberOfEntries);
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (chunkIds == nullptr || outProgress == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+    if (playgo->GetPlaygoHeader().file_size == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_CHUNK_ID;
+
+    outProgress->progressSize = 0;
+    outProgress->totalSize = 0;
+
+    u64 total_size = 0;
+    for (u32 i = 0; i < numberOfEntries; i++) {
+        u32 chunk_id = chunkIds[i];
+        if (chunk_id < playgo->chunks.size()) {
+            total_size += playgo->chunks[chunk_id].total_size;
+        } else {
+            return ORBIS_PLAYGO_ERROR_BAD_CHUNK_ID;
+        }
+    }
+
+    outProgress->progressSize = total_size;
+    outProgress->totalSize = total_size;
+
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoGetToDoList(OrbisPlayGoHandle handle, OrbisPlayGoToDo* outTodoList,
                                       u32 numberOfEntries, u32* outEntries) {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called handle = {} numberOfEntries = {}", handle,
-              numberOfEntries);
+    LOG_INFO(Lib_PlayGo, "called handle = {} numberOfEntries = {}", handle, numberOfEntries);
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
     if (handle != 1)
         return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
-    if (outTodoList == nullptr)
+    if (outTodoList == nullptr || outEntries == nullptr)
         return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
     *outEntries = 0; // nothing to do
     return ORBIS_OK;
 }
 
+int scePlayGoConvertLanguage(int systemLang) {
+    if (systemLang >= 0 && systemLang < 48) {
+        return (1 << (64 - systemLang - 1));
+    } else {
+        return 0;
+    }
+}
+
 s32 PS4_SYSV_ABI scePlayGoInitialize(OrbisPlayGoInitParams* param) {
+    LOG_INFO(Lib_PlayGo, "called, bufSize = {}", param->bufSize);
     if (param->bufAddr == nullptr)
         return ORBIS_PLAYGO_ERROR_BAD_POINTER;
     if (param->bufSize < 0x200000)
         return ORBIS_PLAYGO_ERROR_BAD_SIZE;
-    LOG_INFO(Lib_PlayGo, "(STUBBED)called, bufSize = {}", param->bufSize);
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (!playgo->initialized) {
+        using namespace SystemService;
+        // get system lang
+        int systemLang = 0;
+        sceSystemServiceParamGetInt(ORBIS_SYSTEM_SERVICE_PARAM_ID_LANG, &systemLang);
+        playgo->langMask = scePlayGoConvertLanguage(systemLang);
+        playgo->initialized = true;
+    } else {
+        return ORBIS_PLAYGO_ERROR_ALREADY_INITIALIZED;
+    }
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoOpen(OrbisPlayGoHandle* outHandle, const void* param) {
-    *outHandle = 1;
-    LOG_INFO(Lib_PlayGo, "(STUBBED)called");
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (outHandle == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (param)
+        return ORBIS_PLAYGO_ERROR_INVALID_ARGUMENT;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+    if (playgo->GetPlaygoHeader().file_size == 0)
+        return ORBIS_PLAYGO_ERROR_NOT_SUPPORT_PLAYGO;
+
+    playgo->handle = *outHandle = 1;
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI scePlayGoPrefetch() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+s32 PS4_SYSV_ABI scePlayGoPrefetch(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
+                                   u32 numberOfEntries, OrbisPlayGoLocus minimumLocus) {
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (chunkIds == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+
+    switch (minimumLocus) {
+    case ORBIS_PLAYGO_LOCUS_NOT_DOWNLOADED:
+    case ORBIS_PLAYGO_LOCUS_LOCAL_SLOW:
+    case ORBIS_PLAYGO_LOCUS_LOCAL_FAST:
+        break;
+    default:
+        return ORBIS_PLAYGO_ERROR_BAD_LOCUS;
+    }
     return ORBIS_OK;
 }
 
-s32 PS4_SYSV_ABI scePlayGoSetInstallSpeed() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+s32 PS4_SYSV_ABI scePlayGoSetInstallSpeed(OrbisPlayGoHandle handle, OrbisPlayGoInstallSpeed speed) {
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+
+    switch (speed) {
+    case ORBIS_PLAYGO_INSTALL_SPEED_SUSPENDED:
+    case ORBIS_PLAYGO_INSTALL_SPEED_TRICKLE:
+    case ORBIS_PLAYGO_INSTALL_SPEED_FULL:
+        break;
+    default:
+        return ORBIS_PLAYGO_ERROR_INVALID_ARGUMENT;
+    }
+
+    std::scoped_lock lk{playgo->GetSpeedMutex()};
+
+    using namespace std::chrono;
+    playgo->speed = speed;
+    playgo->speed_tick =
+        duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count();
+
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoSetLanguageMask(OrbisPlayGoHandle handle,
                                           OrbisPlayGoLanguageMask languageMask) {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+    LOG_INFO(Lib_PlayGo, "called");
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+
+    playgo->langMask = languageMask;
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoSetToDoList(OrbisPlayGoHandle handle, const OrbisPlayGoToDo* todoList,
                                       uint32_t numberOfEntries) {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+
+    if (handle != 1)
+        return ORBIS_PLAYGO_ERROR_BAD_HANDLE;
+    if (todoList == nullptr)
+        return ORBIS_PLAYGO_ERROR_BAD_POINTER;
+    if (numberOfEntries == 0)
+        return ORBIS_PLAYGO_ERROR_BAD_SIZE;
+    if (!playgo->initialized)
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
     return ORBIS_OK;
 }
 
 s32 PS4_SYSV_ABI scePlayGoTerminate() {
-    LOG_ERROR(Lib_PlayGo, "(STUBBED)called");
+    LOG_INFO(Lib_PlayGo, "called");
+
+    auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+    if (playgo->initialized) {
+        playgo->initialized = false;
+    } else {
+        return ORBIS_PLAYGO_ERROR_NOT_INITIALIZED;
+    }
     return ORBIS_OK;
 }
 
diff --git a/src/core/libraries/playgo/playgo.h b/src/core/libraries/playgo/playgo.h
index a6b8c91d..f5ae1baa 100644
--- a/src/core/libraries/playgo/playgo.h
+++ b/src/core/libraries/playgo/playgo.h
@@ -14,10 +14,13 @@ constexpr int shadMagic = 0x53484144;
 
 s32 PS4_SYSV_ABI sceDbgPlayGoRequestNextChunk();
 s32 PS4_SYSV_ABI sceDbgPlayGoSnapshot();
-s32 PS4_SYSV_ABI scePlayGoClose();
-s32 PS4_SYSV_ABI scePlayGoGetChunkId();
-s32 PS4_SYSV_ABI scePlayGoGetEta();
-s32 PS4_SYSV_ABI scePlayGoGetInstallSpeed();
+s32 PS4_SYSV_ABI scePlayGoClose(OrbisPlayGoHandle handle);
+s32 PS4_SYSV_ABI scePlayGoGetChunkId(OrbisPlayGoHandle handle, OrbisPlayGoChunkId* outChunkIdList,
+                                     u32 numberOfEntries, u32* outEntries);
+s32 PS4_SYSV_ABI scePlayGoGetEta(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
+                                 u32 numberOfEntries, OrbisPlayGoEta* outEta);
+s32 PS4_SYSV_ABI scePlayGoGetInstallSpeed(OrbisPlayGoHandle handle,
+                                          OrbisPlayGoInstallSpeed* outSpeed);
 s32 PS4_SYSV_ABI scePlayGoGetLanguageMask(OrbisPlayGoHandle handle,
                                           OrbisPlayGoLanguageMask* outLanguageMask);
 s32 PS4_SYSV_ABI scePlayGoGetLocus(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
@@ -28,8 +31,9 @@ s32 PS4_SYSV_ABI scePlayGoGetToDoList(OrbisPlayGoHandle handle, OrbisPlayGoToDo*
                                       u32 numberOfEntries, u32* outEntries);
 s32 PS4_SYSV_ABI scePlayGoInitialize(OrbisPlayGoInitParams* param);
 s32 PS4_SYSV_ABI scePlayGoOpen(OrbisPlayGoHandle* outHandle, const void* param);
-s32 PS4_SYSV_ABI scePlayGoPrefetch();
-s32 PS4_SYSV_ABI scePlayGoSetInstallSpeed();
+s32 PS4_SYSV_ABI scePlayGoPrefetch(OrbisPlayGoHandle handle, const OrbisPlayGoChunkId* chunkIds,
+                                   u32 numberOfEntries, OrbisPlayGoLocus minimumLocus);
+s32 PS4_SYSV_ABI scePlayGoSetInstallSpeed(OrbisPlayGoHandle handle, OrbisPlayGoInstallSpeed speed);
 s32 PS4_SYSV_ABI scePlayGoSetLanguageMask(OrbisPlayGoHandle handle,
                                           OrbisPlayGoLanguageMask languageMask);
 s32 PS4_SYSV_ABI scePlayGoSetToDoList(OrbisPlayGoHandle handle, const OrbisPlayGoToDo* todoList,
diff --git a/src/emulator.cpp b/src/emulator.cpp
index 12e89349..9cc7a130 100644
--- a/src/emulator.cpp
+++ b/src/emulator.cpp
@@ -91,8 +91,11 @@ void Emulator::Run(const std::filesystem::path& file) {
                 app_version = param_sfo->GetString("APP_VER");
                 LOG_INFO(Loader, "Fw: {:#x} App Version: {}", fw_version, app_version);
             } else if (entry.path().filename() == "playgo-chunk.dat") {
-                auto* playgo = Common::Singleton<PlaygoChunk>::Instance();
-                playgo->Open(sce_sys_folder.string() + "/playgo-chunk.dat");
+                auto* playgo = Common::Singleton<PlaygoFile>::Instance();
+                auto filepath = sce_sys_folder / "playgo-chunk.dat";
+                if (!playgo->Open(filepath)) {
+                    LOG_ERROR(Loader, "PlayGo: unable to open file");
+                }
             } else if (entry.path().filename() == "pic0.png" ||
                        entry.path().filename() == "pic1.png") {
                 auto* splash = Common::Singleton<Splash>::Instance();