Games like 失忆者的终章(The Amnesiac:Final Chapter)
Games like 失忆者的终章(The Amnesiac:Final Chapter) include Undertale, The Witcher 3: Wild Hunt — Remastered, OMORI, Back to the Dawn, and OneShot. We matched them by the tags players give 失忆者的终章(The Amnesiac:Final Chapter) on Steam (RPG, Multiple Endings, Dialogue Heavy, Medieval, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

Undertale
Shared: Multiple Endings · Story Rich · RPG

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Story Rich · Medieval

OMORI
Shared: RPG · Story Rich · Multiple Endings

Back to the Dawn
Shared: RPG · Multiple Endings · Story Rich

OneShot
Shared: Story Rich · Pixel Graphics · Multiple Endings

Roadwarden
Shared: RPG · Pixel Graphics · Story Rich

Yes, Your Grace
Shared: RPG · Medieval · Pixel Graphics

Coffee Talk
Shared: Dialogue Heavy · Pixel Graphics · Story Rich

Murders on the Yangtze River
Shared: Story Rich · Detective · Mystery

The Life and Suffering of Sir Brante
Shared: RPG · Story Rich · Medieval

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Multiple Endings · Story Rich · Interactive Fiction

DARK SOULS™ III
Shared: RPG · Dark Fantasy · Story Rich

The Test
Shared: Multiple Endings · Story Rich · Pixel Graphics

The Witcher 2: Assassins of Kings Enhanced Edition
Shared: RPG · Story Rich · Multiple Endings

DELTARUNE
Shared: RPG · Story Rich · Pixel Graphics

Felvidek
Shared: RPG · Medieval · Dark Fantasy

Disco Elysium - The Final Cut
Shared: RPG · Story Rich · Detective

Ten Trials of Babel: The Doppelganger Maze
Shared: Multiple Endings · RPG · Story Rich

Kingdom Come: Deliverance II
Shared: RPG · Medieval · Story Rich

Dread Delusion
Shared: RPG · Dark Fantasy · Story Rich

To the Moon
Shared: Story Rich · Pixel Graphics · RPG

Kingdom Come: Deliverance
Shared: RPG · Medieval · Story Rich

Ib
Shared: Pixel Graphics · Story Rich · RPG

Return of the Obra Dinn
Shared: Story Rich · Mystery · Detective