Games like The Red Button
Games like The Red Button include Death and Taxes, No, I'm not a Human, Getting Over It with Bennett Foddy, KinitoPET, and Lobotomy Corporation | Monster Management Simulation. We matched them by the tags players give The Red Button on Steam (Psychological Horror, Immersive Sim, Puzzle Platformer, Interactive Fiction, and Indie): closest matches first, and among equally close ones the better-known games.

Death and Taxes
Shared: Psychological Horror · Choices Matter · Multiple Endings

No, I'm not a Human
Shared: Psychological Horror · Indie · Choices Matter

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Difficult · Indie

KinitoPET
Shared: Psychological Horror · Immersive Sim · Indie

Lobotomy Corporation | Monster Management Simulation
Shared: Psychological Horror · Difficult · Indie

The Test
Shared: Psychological Horror · Multiple Endings · Simulation

Breakout 13
Shared: Interactive Fiction · Immersive Sim · Choices Matter

Emily is Away Too
Shared: Indie · Choices Matter · Casual

The Test: Final Revelation
Shared: Psychological Horror · Choices Matter · Multiple Endings

The Bathhouse Restored Edition
Shared: Psychological Horror · Immersive Sim · Choices Matter

Ultimate Custom Night
Shared: Difficult · Free to Play · Indie

Slay the Princess — The Pristine Cut
Shared: Psychological Horror · Choices Matter · Interactive Fiction

Five Nights at Freddy's
Shared: Psychological Horror · Indie · Difficult

Pathologic 2
Shared: Immersive Sim · Difficult · Choices Matter

Emily is Away <3
Shared: Choices Matter · Indie · Multiple Endings

Chinese Parents
Shared: Psychological Horror · Indie · Casual

Little Misfortune
Shared: Psychological Horror · Indie · Choices Matter

[Chillas Art] Parasocial
Shared: Psychological Horror · Indie · Immersive Sim

Scarlet Hollow
Shared: Psychological Horror · Choices Matter · Interactive Fiction

Vanity Fair: The Pursuit
Shared: Immersive Sim · Choices Matter · Indie

The Test: Hypothesis Rising
Shared: Psychological Horror · Choices Matter · Multiple Endings

The NOexistenceN of you AND me
Shared: Psychological Horror · Interactive Fiction · Multiple Endings

Undertale
Shared: Choices Matter · Multiple Endings · Indie

Papers, Please
Shared: Indie · Simulation · Multiple Endings