Games like Temple of Endless Night
Games like Temple of Endless Night include Baldur's Gate 3, Roadwarden, The Life and Suffering of Sir Brante, Suzerain, and Breakout 13. We matched them by the tags players give Temple of Endless Night on Steam (RPG, Choose Your Own Adventure, Interactive Fiction, Character Customization, and Text-Based): closest matches first, and among equally close ones the better-known games.

Baldur's Gate 3
Shared: RPG · Character Customization · Choices Matter

Roadwarden
Shared: RPG · Text-Based · Interactive Fiction

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

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

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

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

Vampire: The Masquerade — Night Road
Shared: Choose Your Own Adventure · Interactive Fiction · Text-Based

Dragon Age: Origins - Ultimate Edition
Shared: RPG · Character Customization · Choices Matter

Kingdom Come: Deliverance
Shared: RPG · Historical · Choose Your Own Adventure

Slay the Princess — The Pristine Cut
Shared: Choose Your Own Adventure · Choices Matter · Horror

Tainted Grail: The Fall of Avalon
Shared: RPG · Character Customization · Adventure

Late Shift
Shared: Choose Your Own Adventure · Interactive Fiction · Choices Matter

Dragon Age™ Inquisition
Shared: RPG · Character Customization · Choices Matter

The Elder Scrolls Online - Standard Edition
Shared: RPG · Character Customization · Adventure

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

The Test
Shared: Choose Your Own Adventure · Multiple Endings · Story Rich

Warhammer 40,000: Rogue Trader
Shared: RPG · Character Customization · Choices Matter

The Life and Suffering of Sir Brante — Chapter 1&2
Shared: Choose Your Own Adventure · Interactive Fiction · RPG

The Witcher 2: Assassins of Kings Enhanced Edition
Shared: RPG · Choices Matter · Story Rich

The Casting of Frank Stone™
Shared: Horror · Choices Matter · Choose Your Own Adventure

Choice of Robots
Shared: Choose Your Own Adventure · Interactive Fiction · Text-Based

Scarlet Hollow
Shared: Horror · Choices Matter · Interactive Fiction

Road to Empress I
Shared: RPG · Choices Matter · Interactive Fiction

The Witcher: Enhanced Edition Director's Cut
Shared: RPG · Choices Matter · Story Rich