Games like GlitchSPANKR
Games like GlitchSPANKR include The Stanley Parable, Undertale, Firewatch, Detroit: Become Human, and The Henry Stickmin Collection. We matched them by the tags players give GlitchSPANKR on Steam (Comedy, Multiple Endings, Dynamic Narration, Choices Matter, and Casual): closest matches first, and among equally close ones the better-known games.

The Stanley Parable
Shared: Comedy · First-Person · Dynamic Narration

Undertale
Shared: Multiple Endings · Choices Matter · Story Rich

Firewatch
Shared: Story Rich · First-Person · Walking Simulator

Detroit: Become Human
Shared: Multiple Endings · Choices Matter · Story Rich

The Henry Stickmin Collection
Shared: Multiple Endings · Comedy · Choices Matter

Dispatch
Shared: Choices Matter · Comedy · Story Rich

Road 96
Shared: Choices Matter · First-Person · Multiple Endings

Garry's Mod
Shared: Casual · First-Person · Comedy

Fever Meme
Shared: Comedy · Multiple Endings · Choices Matter

OneShot
Shared: Story Rich · Choices Matter · Multiple Endings

Tales from the Borderlands
Shared: Comedy · Choices Matter · Story Rich

Jazzpunk: Director's Cut
Shared: Comedy · First-Person · Funny

Toilet Chronicles
Shared: Comedy · Multiple Endings · First-Person

The Wolf Among Us
Shared: Multiple Endings · Choices Matter · Story Rich

There Is No Game: Wrong Dimension
Shared: Comedy · Casual · Story Rich

Senren * Banka
Shared: First-Person · Multiple Endings · Casual

Outcore: Desktop Adventure
Shared: Comedy · Story Rich · Choices Matter

Bugsnax
Shared: Comedy · Story Rich · First-Person

The Forgotten City
Shared: Choices Matter · Multiple Endings · Story Rich

Emily is Away Too
Shared: Choices Matter · Casual · Multiple Endings

Slime Rancher
Shared: First-Person · Exploration · Casual

Yes, Your Grace
Shared: Choices Matter · Story Rich · Multiple Endings

Reventure
Shared: Multiple Endings · Comedy · Adventure

While We Wait Here
Shared: Multiple Endings · Choices Matter · Walking Simulator