Here is the full list of all 51 Romance of the Three Kingdoms 13 achievements worth 1,000 gamerscore.
Achieved all records in RTK13.
Cleared the scenario "Yellow Turban Rebellion."
Cleared the scenario "Chu Shi Biao, a Declaration of War."
Cleared all scenarios of the main game of RTK13.
Cleared the scenario "Yi Subjugation."
Cleared the scenario "Battle of Tong Gate."
Cleared the scenario "The Huarong Road."
Assembled 50 Specialties during one time through the game.
Achieved a Clan Mission at "Very Difficult" as a Ruler.
Successfully created "Alliance" as an agent for the first time.
Successfully completed "Placate" as an agent for the first time.
Cleared the scenario "The Three Visits."
Viewed all history events in RTK13.
Viewed the "Battle of Chibi."
Cleared the scenario "The Battle of Guandu."
Achieved a City Mission at "Very Difficult" as a Governor.
Cleared the scenario "Rise of the Little Conqueror."
Advanced from a free officer to 1st Rank for the first time.
Achieved a Province Mission at "Very Difficult" as a Viceroy.
Achieved highest honors for short term force merit for the first time.
Cleared the scenario "Warlords."
Raised fame and cleared with Merchant type prestige for the first time.
Won 100 debates.
Won 100 duels.
Cleared the scenario "Anti Dong Zhuo Coalition."
Cleared a scenario for the first time.
Raised fame and cleared with Patriot type prestige for the first time.
Viewed the "Deadlock at Guandu."
Appointed as a Viceroy for the first time.
Appointed as a Governor for the first time.
Kept one of the prestige titles to the very end.
Cleared all of Hero Mode and Hero Mode Side Story
Achieved First Strike honors for the first time.
Viewed the "Battle of Hulao Gate."
Cleared all stages of the Hero Mode in Romance of the Three Kingdoms XIII
Successfully completed "Spy" mission as an agent for the first time.
Induced another officer into the "Respect" state for the first time.
Induced another officer into the "Gratitude" state for the first time.
Appointed as a Minister for the first time.
Collected over 50 people in the Officer List.
Won a Duel for the first time.
Induced another officer into the "Charmed" state for the first time.
Successfully completed "Endorse" as an agent for the first time.
Completed a mission for the first time.
Won a Debate for the first time.
Achieved the first place in deeds for the first time.
Cleared a stage in the Hero Mode for the first time.
Created a Bond for the first time.
Gave a Gift for the first time.
Obtained an Invitation for the first time.
Induced another officer into the "Interest" state for the first time.