Games like The Last Question
Games like The Last Question include Breakout 13, Her Story, Word Game, Mandate Of Heaven, and Cyber Manhunt. We matched them by the tags players give The Last Question on Steam (Typing, Exploration, RPG, CRPG, and Choose Your Own Adventure): closest matches first, and among equally close ones the better-known games.

Breakout 13
Shared: Exploration · Choose Your Own Adventure · Interactive Fiction

Her Story
Shared: Typing · Exploration · Choose Your Own Adventure

Word Game
Shared: Exploration · Choose Your Own Adventure · RPG

Mandate Of Heaven
Shared: RPG · Exploration · Immersive Sim

Cyber Manhunt
Shared: RPG · Puzzle · Immersive Sim

Spy Alliance
Shared: Exploration · CRPG · Choose Your Own Adventure

WILL: A Wonderful World / WILL:美好世界
Shared: RPG · Exploration · Puzzle

7 Days to End with You
Shared: Typing · Choose Your Own Adventure · Puzzle

Murders on the Yangtze River
Shared: Exploration · Puzzle · Detective

CaseCracker
Shared: RPG · Puzzle · Detective

Disco Elysium - The Final Cut
Shared: RPG · CRPG · Detective

鬼谷八荒 Tale of Immortal
Shared: RPG · Choose Your Own Adventure · Exploration

60 Seconds! Reatomized
Shared: Choose Your Own Adventure · Exploration · 2D

ATOM RPG: Post-apocalyptic indie game
Shared: Exploration · CRPG · RPG

School Days
Shared: Exploration · Choose Your Own Adventure · Immersive Sim

Aliya: Timelink
Shared: RPG · Interactive Fiction · Word Game

Who's Lila?
Shared: Choose Your Own Adventure · Exploration · Interactive Fiction

The Life and Suffering of Sir Brante
Shared: RPG · Choose Your Own Adventure · Interactive Fiction

Ib
Shared: Exploration · RPG · Choose Your Own Adventure

CaseCracker 3
Shared: Typing · Immersive Sim · Word Game

Drova - Forsaken Kin
Shared: Exploration · RPG · CRPG

60 Seconds!
Shared: Exploration · Choose Your Own Adventure · Immersive Sim

江湖十一
Shared: RPG · Exploration · CRPG

Suzerain
Shared: Choose Your Own Adventure · Interactive Fiction · RPG