Games like Obscured Stories: The Resentment
Games like Obscured Stories: The Resentment include No, I'm not a Human, The Test, Death and Taxes, Milk outside a bag of milk outside a bag of milk, and The Test: Hypothesis Rising. We matched them by the tags players give Obscured Stories: The Resentment on Steam (Narrative, Text-Based, Multiple Endings, Choices Matter, and Psychological Horror): closest matches first, and among equally close ones the better-known games.

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

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

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

Milk outside a bag of milk outside a bag of milk
Shared: Psychological Horror · Visual Novel · Multiple Endings

The Test: Hypothesis Rising
Shared: Multiple Endings · Choices Matter · Visual Novel

Scarlet Hollow
Shared: Choices Matter · Visual Novel · Psychological Horror

The Coffin of Andy and Leyley
Shared: Multiple Endings · Psychological Horror · Visual Novel

Emily is Away Too
Shared: Choices Matter · Multiple Endings · Text-Based

Suzerain
Shared: Visual Novel · Choices Matter · Text-Based

Slay the Princess — The Pristine Cut
Shared: Choices Matter · Visual Novel · Psychological Horror

LoveChoice
Shared: Choices Matter · Multiple Endings · Visual Novel

The Wolf Among Us
Shared: Multiple Endings · Choices Matter · Visual Novel

Zero Escape: The Nonary Games
Shared: Visual Novel · Choices Matter · Multiple Endings

Fears to Fathom - Ironbark Lookout
Shared: Narrative · Psychological Horror · Walking Simulator

The Stanley Parable
Shared: Walking Simulator · Multiple Endings · First-Person

Love Is All Around
Shared: Visual Novel · Multiple Endings · Choices Matter

STEINS;GATE
Shared: Visual Novel · Multiple Endings · Choices Matter

The NOexistenceN of you AND me
Shared: Multiple Endings · Psychological Horror · Visual Novel

The Test: Final Revelation
Shared: Multiple Endings · Choices Matter · Visual Novel

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

NEEDY STREAMER OVERLOAD
Shared: Psychological Horror · Visual Novel · Multiple Endings

Volcano Princess
Shared: Multiple Endings · Choices Matter · Visual Novel

Before Your Eyes
Shared: Narrative · Story Rich · Walking Simulator

What Remains of Edith Finch
Shared: Walking Simulator · Story Rich · First-Person