diff --git a/src/xenia/app/emulator_window.h b/src/xenia/app/emulator_window.h
index 4f1c59da9..6c81dd828 100644
--- a/src/xenia/app/emulator_window.h
+++ b/src/xenia/app/emulator_window.h
@@ -13,6 +13,7 @@
 #include <memory>
 #include <string>
 
+#include "xenia/app/profile_dialogs.h"
 #include "xenia/emulator.h"
 #include "xenia/gpu/command_processor.h"
 #include "xenia/ui/imgui_dialog.h"
@@ -25,8 +26,6 @@
 #include "xenia/ui/windowed_app_context.h"
 #include "xenia/xbox.h"
 
-#include "xenia/app/profile_dialogs.h"
-
 namespace xe {
 namespace app {
 
diff --git a/src/xenia/emulator.cc b/src/xenia/emulator.cc
index 10a0f0907..5f3afb646 100644
--- a/src/xenia/emulator.cc
+++ b/src/xenia/emulator.cc
@@ -43,6 +43,7 @@
 #include "xenia/kernel/user_module.h"
 #include "xenia/kernel/util/gameinfo_utils.h"
 #include "xenia/kernel/util/xdbf_utils.h"
+#include "xenia/kernel/xam/achievement_manager.h"
 #include "xenia/kernel/xam/xam_module.h"
 #include "xenia/kernel/xbdm/xbdm_module.h"
 #include "xenia/kernel/xboxkrnl/xboxkrnl_module.h"
@@ -1517,6 +1518,17 @@ X_STATUS Emulator::CompleteLaunch(const std::filesystem::path& path,
       if (!icon_block.empty()) {
         display_window_->SetIcon(icon_block.data(), icon_block.size());
       }
+
+      for (uint8_t slot = 0; slot < XUserMaxUserCount; slot++) {
+        auto user =
+            kernel_state_->xam_state()->profile_manager()->GetProfile(slot);
+
+        if (user) {
+          kernel_state_->xam_state()
+              ->achievement_manager()
+              ->LoadTitleAchievements(user->xuid(), db);
+        }
+      }
     }
   }
 
diff --git a/src/xenia/kernel/xam/achievement_manager.cc b/src/xenia/kernel/xam/achievement_manager.cc
index 85d43c908..28abe2624 100644
--- a/src/xenia/kernel/xam/achievement_manager.cc
+++ b/src/xenia/kernel/xam/achievement_manager.cc
@@ -2,12 +2,12 @@
  ******************************************************************************
  * Xenia : Xbox 360 Emulator Research Project                                 *
  ******************************************************************************
- * Copyright 2023 Ben Vanik. All rights reserved.                             *
+ * Copyright 2024 Xenia Canary. All rights reserved.                          *
  * Released under the BSD license - see LICENSE in the root for more details. *
  ******************************************************************************
  */
 
-#include "achievement_manager.h"
+#include "xenia/kernel/xam/achievement_manager.h"
 #include "xenia/emulator.h"
 #include "xenia/gpu/graphics_system.h"
 #include "xenia/kernel/kernel_state.h"
@@ -17,52 +17,218 @@
 DEFINE_bool(show_achievement_notification, false,
             "Show achievement notification on screen.", "UI");
 
+DEFINE_string(default_achievement_backend, "",
+              "Defines which achievement backend should be used as an default. "
+              "Possible options: [].",
+              "Achievements");
+
 DECLARE_int32(user_language);
 
 namespace xe {
 namespace kernel {
 namespace xam {
 
-AchievementManager::AchievementManager() { unlocked_achievements.clear(); };
+GpdAchievementBackend::GpdAchievementBackend() {}
+GpdAchievementBackend::~GpdAchievementBackend() {}
 
-void AchievementManager::EarnAchievement(uint64_t xuid, uint32_t title_id,
-                                         uint32_t achievement_id) {
-  if (IsAchievementUnlocked(achievement_id)) {
+void GpdAchievementBackend::EarnAchievement(const uint64_t xuid,
+                                            const uint32_t title_id,
+                                            const uint32_t achievement_id) {
+  const auto user = kernel_state()->xam_state()->GetUserProfile(xuid);
+  if (!user) {
     return;
   }
 
-  const Emulator* emulator = kernel_state()->emulator();
-  ui::WindowedAppContext& app_context =
-      kernel_state()->emulator()->display_window()->app_context();
-  ui::ImGuiDrawer* imgui_drawer = emulator->imgui_drawer();
+  auto achievement = GetAchievementInfoInternal(xuid, title_id, achievement_id);
+  if (!achievement) {
+    return;
+  }
 
+  XELOGI("Player: {} Unlocked Achievement: {}", user->name(),
+         xe::to_utf8(xe::load_and_swap<std::u16string>(
+             achievement->achievement_name.c_str())));
+
+  const uint64_t unlock_time = Clock::QueryHostSystemTime();
+  achievement->flags =
+      achievement->flags | static_cast<uint32_t>(AchievementFlags::kAchieved);
+  achievement->unlock_time.high_part = static_cast<uint32_t>(unlock_time >> 32);
+  achievement->unlock_time.low_part = static_cast<uint32_t>(unlock_time);
+
+  SaveAchievementData(xuid, title_id, achievement_id);
+}
+
+AchievementGpdStructure* GpdAchievementBackend::GetAchievementInfoInternal(
+    const uint64_t xuid, const uint32_t title_id,
+    const uint32_t achievement_id) const {
+  const auto user = kernel_state()->xam_state()->GetUserProfile(xuid);
+  if (!user) {
+    return nullptr;
+  }
+
+  return user->GetAchievement(title_id, achievement_id);
+}
+
+const AchievementGpdStructure* GpdAchievementBackend::GetAchievementInfo(
+    const uint64_t xuid, const uint32_t title_id,
+    const uint32_t achievement_id) const {
+  return GetAchievementInfoInternal(xuid, title_id, achievement_id);
+}
+
+bool GpdAchievementBackend::IsAchievementUnlocked(
+    const uint64_t xuid, const uint32_t title_id,
+    const uint32_t achievement_id) const {
+  const auto achievement =
+      GetAchievementInfoInternal(xuid, title_id, achievement_id);
+
+  return (achievement->flags &
+          static_cast<uint32_t>(AchievementFlags::kAchieved)) != 0;
+}
+
+const std::vector<AchievementGpdStructure>*
+GpdAchievementBackend::GetTitleAchievements(const uint64_t xuid,
+                                            const uint32_t title_id) const {
+  const auto user = kernel_state()->xam_state()->GetUserProfile(xuid);
+  if (!user) {
+    return {};
+  }
+
+  return user->GetTitleAchievements(title_id);
+}
+
+bool GpdAchievementBackend::LoadAchievementsData(
+    const uint64_t xuid, const util::XdbfGameData title_data) {
+  auto user = kernel_state()->xam_state()->GetUserProfile(xuid);
+  if (!user) {
+    return false;
+  }
+
+  // Question. Should loading for GPD for profile be directly done by profile or
+  // here?
+  if (!title_data.is_valid()) {
+    return false;
+  }
+
+  const auto achievements = title_data.GetAchievements();
+  if (achievements.empty()) {
+    return true;
+  }
+
+  const auto title_id = title_data.GetTitleInformation().title_id;
+
+  const XLanguage title_language = title_data.GetExistingLanguage(
+      static_cast<XLanguage>(cvars::user_language));
+  for (const auto& achievement : achievements) {
+    AchievementGpdStructure achievementData(title_language, title_data,
+                                            achievement);
+    user->achievements_[title_id].push_back(achievementData);
+  }
+
+  // TODO(Gliniak): Here should be loader of GPD file for loaded title. That way
+  // we can load flags and unlock_time from specific user.
+  return true;
+}
+
+bool GpdAchievementBackend::SaveAchievementData(const uint64_t xuid,
+                                                const uint32_t title_id,
+                                                const uint32_t achievement_id) {
+  return true;
+}
+
+AchievementManager::AchievementManager() {
+  default_achievements_backend_ = std::make_unique<GpdAchievementBackend>();
+
+  // Add any optional backend here.
+};
+void AchievementManager::EarnAchievement(const uint32_t user_index,
+                                         const uint32_t title_id,
+                                         const uint32_t achievement_id) const {
+  const auto user = kernel_state()->xam_state()->GetUserProfile(user_index);
+  if (!user) {
+    return;
+  }
+
+  EarnAchievement(user->xuid(), title_id, achievement_id);
+};
+
+void AchievementManager::EarnAchievement(const uint64_t xuid,
+                                         const uint32_t title_id,
+                                         const uint32_t achievement_id) const {
+  if (!DoesAchievementExist(achievement_id)) {
+    XELOGW(
+        "{}: Achievement with ID: {} for title: {:08X} doesn't exist in "
+        "database!",
+        __func__, achievement_id, title_id);
+    return;
+  }
+  // Always send request to unlock in 3PP backends. It's up to them to check if
+  // achievement was unlocked
+  for (auto& backend : achievement_backends_) {
+    backend->EarnAchievement(xuid, title_id, achievement_id);
+  }
+
+  if (default_achievements_backend_->IsAchievementUnlocked(xuid, title_id,
+                                                           achievement_id)) {
+    return;
+  }
+
+  default_achievements_backend_->EarnAchievement(xuid, title_id,
+                                                 achievement_id);
+
+  if (!cvars::show_achievement_notification) {
+    return;
+  }
+
+  const auto achievement = default_achievements_backend_->GetAchievementInfo(
+      xuid, title_id, achievement_id);
+
+  if (!achievement) {
+    // Something went really wrong!
+    return;
+  }
+  ShowAchievementEarnedNotification(achievement);
+}
+
+void AchievementManager::LoadTitleAchievements(
+    const uint64_t xuid, const util::XdbfGameData title_data) const {
+  default_achievements_backend_->LoadAchievementsData(xuid, title_data);
+}
+
+const AchievementGpdStructure* AchievementManager::GetAchievementInfo(
+    const uint64_t xuid, const uint32_t title_id,
+    const uint32_t achievement_id) const {
+  return default_achievements_backend_->GetAchievementInfo(xuid, title_id,
+                                                           achievement_id);
+}
+
+const std::vector<AchievementGpdStructure>*
+AchievementManager::GetTitleAchievements(const uint64_t xuid,
+                                         const uint32_t title_id) const {
+  return default_achievements_backend_->GetTitleAchievements(xuid, title_id);
+}
+
+bool AchievementManager::DoesAchievementExist(
+    const uint32_t achievement_id) const {
   const util::XdbfGameData title_xdbf = kernel_state()->title_xdbf();
   const util::XdbfAchievementTableEntry achievement =
       title_xdbf.GetAchievement(achievement_id);
 
   if (!achievement.id) {
-    return;
-  }
-
-  const XLanguage title_language = title_xdbf.GetExistingLanguage(
-      static_cast<XLanguage>(cvars::user_language));
-
-  const std::string label =
-      title_xdbf.GetStringTableEntry(title_language, achievement.label_id);
-  const std::string desc = title_xdbf.GetStringTableEntry(
-      title_language, achievement.description_id);
-
-  XELOGI("Achievement unlocked: {}", label);
-
-  unlocked_achievements[achievement_id] = Clock::QueryHostSystemTime();
-  // Even if we disable popup we still should store info that this
-  // achievement was earned.
-  if (!cvars::show_achievement_notification) {
-    return;
+    return false;
   }
+  return true;
+}
 
+void AchievementManager::ShowAchievementEarnedNotification(
+    const AchievementGpdStructure* achievement) const {
   const std::string description =
-      fmt::format("{}G - {}", achievement.gamerscore, label);
+      fmt::format("{}G - {}", achievement->gamerscore,
+                  xe::to_utf8(xe::load_and_swap<std::u16string>(
+                      achievement->achievement_name.c_str())));
+
+  const Emulator* emulator = kernel_state()->emulator();
+  ui::WindowedAppContext& app_context =
+      emulator->display_window()->app_context();
+  ui::ImGuiDrawer* imgui_drawer = emulator->imgui_drawer();
 
   app_context.CallInUIThread([imgui_drawer, description]() {
     new xe::ui::AchievementNotificationWindow(
@@ -71,21 +237,6 @@ void AchievementManager::EarnAchievement(uint64_t xuid, uint32_t title_id,
   });
 }
 
-bool AchievementManager::IsAchievementUnlocked(uint32_t achievement_id) {
-  auto itr = unlocked_achievements.find(achievement_id);
-
-  return itr != unlocked_achievements.cend();
-}
-
-uint64_t AchievementManager::GetAchievementUnlockTime(uint32_t achievement_id) {
-  auto itr = unlocked_achievements.find(achievement_id);
-  if (itr == unlocked_achievements.cend()) {
-    return 0;
-  }
-
-  return itr->second;
-}
-
 }  // namespace xam
 }  // namespace kernel
 }  // namespace xe
diff --git a/src/xenia/kernel/xam/achievement_manager.h b/src/xenia/kernel/xam/achievement_manager.h
index e24114015..ca896db65 100644
--- a/src/xenia/kernel/xam/achievement_manager.h
+++ b/src/xenia/kernel/xam/achievement_manager.h
@@ -2,7 +2,7 @@
  ******************************************************************************
  * Xenia : Xbox 360 Emulator Research Project                                 *
  ******************************************************************************
- * Copyright 2023 Ben Vanik. All rights reserved.                             *
+ * Copyright 2024 Xenia Canary. All rights reserved.                          *
  * Released under the BSD license - see LICENSE in the root for more details. *
  ******************************************************************************
  */
@@ -14,16 +14,16 @@
 #include <string>
 #include <vector>
 
+#include "xenia/kernel/util/xdbf_utils.h"
 #include "xenia/xbox.h"
 
 namespace xe {
 namespace kernel {
 namespace xam {
 
-// TODO(gibbed): probably a FILETIME/LARGE_INTEGER, unknown currently
 struct X_ACHIEVEMENT_UNLOCK_TIME {
-  xe::be<uint32_t> unk_0;
-  xe::be<uint32_t> unk_4;
+  xe::be<uint32_t> high_part;
+  xe::be<uint32_t> low_part;
 };
 
 struct X_ACHIEVEMENT_DETAILS {
@@ -40,20 +40,160 @@ struct X_ACHIEVEMENT_DETAILS {
 };
 static_assert_size(X_ACHIEVEMENT_DETAILS, 36);
 
+// This is structure used inside GPD file.
+// GPD is writeable XDBF.
+// There are two info instances
+// 1. In Dashboard ID which contains single GPD that contains info about any
+// booted game (name, title_id, last boot time etc)
+// 2. In specific Title ID directory GPD contains there structure below for
+// every achievement. (unlocked or not)
+struct AchievementGpdStructure {
+  AchievementGpdStructure(const XLanguage language,
+                          const util::XdbfGameData xdbf,
+                          const util::XdbfAchievementTableEntry& xdbf_entry) {
+    const std::string label =
+        xdbf.GetStringTableEntry(language, xdbf_entry.label_id);
+    const std::string desc =
+        xdbf.GetStringTableEntry(language, xdbf_entry.description_id);
+    const std::string locked_desc =
+        xdbf.GetStringTableEntry(language, xdbf_entry.unachieved_id);
+
+    struct_size = 0x1C;
+    achievement_id = static_cast<xe::be<uint32_t>>(xdbf_entry.id);
+    image_id = xdbf_entry.image_id;
+    gamerscore = static_cast<xe::be<uint32_t>>(xdbf_entry.gamerscore);
+    flags = xdbf_entry.flags;
+    unlock_time = {};
+    achievement_name =
+        xe::load_and_swap<std::u16string>(xe::to_utf16(label).c_str());
+    unlocked_description =
+        xe::load_and_swap<std::u16string>(xe::to_utf16(desc).c_str());
+    locked_description =
+        xe::load_and_swap<std::u16string>(xe::to_utf16(locked_desc).c_str());
+  }
+
+  xe::be<uint32_t> struct_size;
+  xe::be<uint32_t> achievement_id;
+  xe::be<uint32_t> image_id;
+  xe::be<uint32_t> gamerscore;
+  xe::be<uint32_t> flags;
+  X_ACHIEVEMENT_UNLOCK_TIME unlock_time;
+  std::u16string achievement_name;
+  std::u16string unlocked_description;
+  std::u16string locked_description;
+};
+
+enum class AchievementType : uint32_t {
+  kCompletion = 1,
+  kLeveling = 2,
+  kUnlock = 3,
+  kEvent = 4,
+  kTournament = 5,
+  kCheckpoint = 6,
+  kOther = 7,
+};
+
+enum class AchievementPlatform : uint32_t {
+  kX360 = 0x100000,
+  kPC = 0x200000,
+  kMobile = 0x300000,
+  kWebGames = 0x400000,
+};
+
+enum class AchievementFlags : uint32_t {
+  kTypeMask = 0x7,
+  kShowUnachieved = 0x8,
+  kAchievedOnline = 0x10000,
+  kAchieved = 0x20000,
+  kNotAchievable = 0x40000,
+  kWasNotAchievable = 0x80000,
+  kPlatformMask = 0x700000,
+  kColorizable = 0x1000000,  // avatar awards only?
+};
+
+class AchievementBackendInterface {
+ public:
+  virtual ~AchievementBackendInterface() {};
+
+  virtual void EarnAchievement(const uint64_t xuid, const uint32_t title_id,
+                               const uint32_t achievement_id) = 0;
+
+  virtual bool IsAchievementUnlocked(const uint64_t xuid,
+                                     const uint32_t title_id,
+                                     const uint32_t achievement_id) const = 0;
+
+  virtual const AchievementGpdStructure* GetAchievementInfo(
+      const uint64_t xuid, const uint32_t title_id,
+      const uint32_t achievement_id) const = 0;
+  virtual const std::vector<AchievementGpdStructure>* GetTitleAchievements(
+      const uint64_t xuid, const uint32_t title_id) const = 0;
+  virtual bool LoadAchievementsData(const uint64_t xuid,
+                                    const util::XdbfGameData title_data) = 0;
+
+ private:
+  virtual bool SaveAchievementsData(const uint64_t xuid,
+                                    const uint32_t title_id) = 0;
+  virtual bool SaveAchievementData(const uint64_t xuid, const uint32_t title_id,
+                                   const uint32_t achievement_id) = 0;
+};
+
+class GpdAchievementBackend : public AchievementBackendInterface {
+ public:
+  GpdAchievementBackend();
+  ~GpdAchievementBackend();
+
+  void EarnAchievement(const uint64_t xuid, const uint32_t title_id,
+                       const uint32_t achievement_id) override;
+  bool IsAchievementUnlocked(const uint64_t xuid, const uint32_t title_id,
+                             const uint32_t achievement_id) const override;
+  const AchievementGpdStructure* GetAchievementInfo(
+      const uint64_t xuid, const uint32_t title_id,
+      const uint32_t achievement_id) const override;
+  const std::vector<AchievementGpdStructure>* GetTitleAchievements(
+      const uint64_t xuid, const uint32_t title_id) const override;
+  bool LoadAchievementsData(const uint64_t xuid,
+                            const util::XdbfGameData title_data) override;
+
+ private:
+  AchievementGpdStructure* GetAchievementInfoInternal(
+      const uint64_t xuid, const uint32_t title_id,
+      const uint32_t achievement_id) const;
+
+  bool SaveAchievementsData(const uint64_t xuid,
+                            const uint32_t title_id) override {
+    return 0;
+  };
+  bool SaveAchievementData(const uint64_t xuid, const uint32_t title_id,
+                           const uint32_t achievement_id) override;
+};
+
 class AchievementManager {
  public:
   AchievementManager();
 
-  void EarnAchievement(uint64_t xuid, uint32_t title_id,
-                       uint32_t achievement_id);
+  void LoadTitleAchievements(const uint64_t xuid,
+                             const util::XdbfGameData title_id) const;
 
-  bool IsAchievementUnlocked(uint32_t achievement_id);
-  uint64_t GetAchievementUnlockTime(uint32_t achievement_id);
+  void EarnAchievement(const uint32_t user_index, const uint32_t title_id,
+                       const uint32_t achievement_id) const;
+  void EarnAchievement(const uint64_t xuid, const uint32_t title_id,
+                       const uint32_t achievement_id) const;
+  const AchievementGpdStructure* GetAchievementInfo(
+      const uint64_t xuid, const uint32_t title_id,
+      const uint32_t achievement_id) const;
+  const std::vector<AchievementGpdStructure>* GetTitleAchievements(
+      const uint64_t xuid, const uint32_t title_id) const;
 
  private:
-  std::map<uint32_t, uint64_t> unlocked_achievements;
-  // void Load();
-  // void Save();
+  bool DoesAchievementExist(const uint32_t achievement_id) const;
+  void ShowAchievementEarnedNotification(
+      const AchievementGpdStructure* achievement) const;
+
+  // This contains all backends with exception of default storage.
+  std::vector<std::unique_ptr<AchievementBackendInterface>>
+      achievement_backends_;
+
+  std::unique_ptr<AchievementBackendInterface> default_achievements_backend_;
 };
 
 }  // namespace xam
diff --git a/src/xenia/kernel/xam/apps/xgi_app.cc b/src/xenia/kernel/xam/apps/xgi_app.cc
index ab676b2ee..c2fa53014 100644
--- a/src/xenia/kernel/xam/apps/xgi_app.cc
+++ b/src/xenia/kernel/xam/apps/xgi_app.cc
@@ -102,7 +102,8 @@ X_HRESULT XgiApp::DispatchMessageSync(uint32_t message, uint32_t buffer_ptr,
           (X_XUSER_ACHIEVEMENT*)memory_->TranslateVirtual(achievements_ptr);
       for (uint32_t i = 0; i < achievement_count; i++, achievement++) {
         kernel_state_->achievement_manager()->EarnAchievement(
-            achievement->user_idx, 0, achievement->achievement_id);
+            achievement->user_idx, kernel_state_->title_id(),
+            achievement->achievement_id);
       }
       return X_E_SUCCESS;
     }
diff --git a/src/xenia/kernel/xam/user_profile.cc b/src/xenia/kernel/xam/user_profile.cc
index 726ac0af0..dab6e3903 100644
--- a/src/xenia/kernel/xam/user_profile.cc
+++ b/src/xenia/kernel/xam/user_profile.cc
@@ -232,6 +232,31 @@ Property* UserProfile::GetProperty(const AttributeKey id) {
   return nullptr;
 }
 
+AchievementGpdStructure* UserProfile::GetAchievement(const uint32_t title_id,
+                                                     const uint32_t id) {
+  auto title_achievements = achievements_.find(title_id);
+  if (title_achievements == achievements_.end()) {
+    return nullptr;
+  }
+
+  for (auto& entry : title_achievements->second) {
+    if (entry.achievement_id == id) {
+      return &entry;
+    }
+  }
+  return nullptr;
+}
+
+std::vector<AchievementGpdStructure>* UserProfile::GetTitleAchievements(
+    const uint32_t title_id) {
+  auto title_achievements = achievements_.find(title_id);
+  if (title_achievements == achievements_.end()) {
+    return nullptr;
+  }
+
+  return &title_achievements->second;
+}
+
 }  // namespace xam
 }  // namespace kernel
 }  // namespace xe
diff --git a/src/xenia/kernel/xam/user_profile.h b/src/xenia/kernel/xam/user_profile.h
index b4a5f4f68..8b16c8ecf 100644
--- a/src/xenia/kernel/xam/user_profile.h
+++ b/src/xenia/kernel/xam/user_profile.h
@@ -19,6 +19,7 @@
 #include "xenia/base/byte_stream.h"
 #include "xenia/kernel/util/property.h"
 #include "xenia/kernel/util/xuserdata.h"
+#include "xenia/kernel/xam/achievement_manager.h"
 #include "xenia/xbox.h"
 
 namespace xe {
@@ -173,12 +174,21 @@ class UserProfile {
 
   std::map<uint32_t, uint32_t> contexts_;
 
+  friend class GpdAchievementBackend;
+
+ protected:
+  AchievementGpdStructure* GetAchievement(const uint32_t title_id,
+                                          const uint32_t id);
+  std::vector<AchievementGpdStructure>* GetTitleAchievements(
+      const uint32_t title_id);
+
  private:
   uint64_t xuid_;
   X_XAMACCOUNTINFO account_info_;
 
   std::vector<std::unique_ptr<UserSetting>> setting_list_;
   std::unordered_map<uint32_t, UserSetting*> settings_;
+  std::map<uint32_t, std::vector<AchievementGpdStructure>> achievements_;
 
   std::vector<Property> properties_;
 
diff --git a/src/xenia/kernel/xam/xam_user.cc b/src/xenia/kernel/xam/xam_user.cc
index 5a4bdd70b..a35541140 100644
--- a/src/xenia/kernel/xam/xam_user.cc
+++ b/src/xenia/kernel/xam/xam_user.cc
@@ -609,32 +609,35 @@ dword_result_t XamUserCreateAchievementEnumerator_entry(
     return result;
   }
 
+  const auto user = kernel_state()->xam_state()->GetUserProfile(user_index);
+  if (!user) {
+    return X_ERROR_INVALID_PARAMETER;
+  }
+
+  uint64_t requester_xuid = user->xuid();
+  if (xuid) {
+    requester_xuid = xuid;
+  }
+
   const util::XdbfGameData db = kernel_state()->title_xdbf();
+  uint32_t title_id_ = title_id ? title_id : kernel_state()->title_id();
 
-  if (db.is_valid()) {
-    const XLanguage language =
-        db.GetExistingLanguage(static_cast<XLanguage>(cvars::user_language));
-    const std::vector<util::XdbfAchievementTableEntry> achievement_list =
-        db.GetAchievements();
-
-    for (const util::XdbfAchievementTableEntry& entry : achievement_list) {
-      auto is_unlocked =
-          kernel_state()->achievement_manager()->IsAchievementUnlocked(
-              entry.id);
-      auto unlock_time =
-          kernel_state()->achievement_manager()->GetAchievementUnlockTime(
-              entry.id);
+  const auto user_title_achievements =
+      kernel_state()->achievement_manager()->GetTitleAchievements(
+          requester_xuid, title_id_);
 
+  if (user_title_achievements) {
+    for (const auto& entry : *user_title_achievements) {
       auto item = XAchievementEnumerator::AchievementDetails{
-          entry.id,
-          xe::to_utf16(db.GetStringTableEntry(language, entry.label_id)),
-          xe::to_utf16(db.GetStringTableEntry(language, entry.description_id)),
-          xe::to_utf16(db.GetStringTableEntry(language, entry.unachieved_id)),
+          entry.achievement_id,
+          xe::load_and_swap<std::u16string>(entry.achievement_name.c_str()),
+          xe::load_and_swap<std::u16string>(entry.unlocked_description.c_str()),
+          xe::load_and_swap<std::u16string>(entry.locked_description.c_str()),
           entry.image_id,
           entry.gamerscore,
-          (uint32_t)(unlock_time << 31),
-          (uint32_t)unlock_time,
-          is_unlocked ? entry.flags | 0x20000 : entry.flags};
+          entry.unlock_time.high_part,
+          entry.unlock_time.low_part,
+          entry.flags};
 
       e->AppendItem(item);
     }
diff --git a/src/xenia/kernel/xenumerator.cc b/src/xenia/kernel/xenumerator.cc
index e2aacc816..19bf472a3 100644
--- a/src/xenia/kernel/xenumerator.cc
+++ b/src/xenia/kernel/xenumerator.cc
@@ -106,8 +106,8 @@ uint32_t XAchievementEnumerator::WriteItems(uint32_t buffer_ptr,
         !!(flags_ & 4) ? AppendString(string_buffer, item.unachieved) : 0;
     details[i].image_id = item.image_id;
     details[i].gamerscore = item.gamerscore;
-    details[i].unlock_time.unk_0 = item.unlock_time.unk_0;
-    details[i].unlock_time.unk_4 = item.unlock_time.unk_4;
+    details[i].unlock_time.high_part = item.unlock_time.high_part;
+    details[i].unlock_time.low_part = item.unlock_time.low_part;
     details[i].flags = item.flags;
   }
 
diff --git a/src/xenia/kernel/xenumerator.h b/src/xenia/kernel/xenumerator.h
index aa0a6ba2d..68f2fd9b4 100644
--- a/src/xenia/kernel/xenumerator.h
+++ b/src/xenia/kernel/xenumerator.h
@@ -124,8 +124,8 @@ class XAchievementEnumerator : public XEnumerator {
     uint32_t image_id;
     uint32_t gamerscore;
     struct {
-      uint32_t unk_0;
-      uint32_t unk_4;
+      uint32_t high_part;
+      uint32_t low_part;
     } unlock_time;
     uint32_t flags;
   };