Legend of Sun Knight Running Away From The Hero (Remake) To Be a Power in the Shadows Tilea's Worry Evil God Average
I second this! I also recommend you to read : 1. Overlord 2. Trash of the Count’s Family 3. My Death Flags Show No Sign of Ending 4. Dungeon Defense 5. Martial King’s Retired Life 6. There Was No Secret Organization to Fight with the World’s Darkness so I Made One (In Exasperation) 7. Stop, Friendly Fire! 8. The Grandmaster Strategist
The Amber Sword similar as in both MC become a character inside a story of a game, having knowledge of a future event and a certain understanding of the world lore, aiming to avoid 'the bad end', and to certain extent a knight with an ability to "freeze". I would say the main differences are the scale/scope of the story and that you won't find an entire chapter dedicated about a nudist running around in the street in The Amber Sword