Games like Your amazing T-Gotchi!
Games like Your amazing T-Gotchi! include Undertale, The Test, Emily is Away Too, Volcano Princess, and LoveChoice. We matched them by the tags players give Your amazing T-Gotchi! on Steam (Horror, Pixel Graphics, Dating Sim, Multiple Endings, and Nudity): closest matches first, and among equally close ones the better-known games.

Undertale
Shared: Pixel Graphics · Multiple Endings · Choices Matter

The Test
Shared: Multiple Endings · Pixel Graphics · Simulation

Emily is Away Too
Shared: Dating Sim · Pixel Graphics · Choices Matter

Volcano Princess
Shared: Multiple Endings · Dating Sim · Choices Matter

LoveChoice
Shared: Dating Sim · Choices Matter · Multiple Endings

OMORI
Shared: Pixel Graphics · Story Rich · Horror

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

Scarlet Hollow
Shared: Horror · Choices Matter · Dating Sim

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

Matchmaking Inc.
Shared: Dating Sim · Multiple Endings · RPG

Slay the Princess — The Pristine Cut
Shared: Horror · Choices Matter · Story Rich

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

Back to the Dawn
Shared: Pixel Graphics · Multiple Endings · Choices Matter

Coffee Talk
Shared: Pixel Graphics · Dialogue Heavy · Story Rich

Tales of the Black Forest
Shared: Pixel Graphics · Horror · RPG

Tricolour Lovestory
Shared: Dating Sim · Nudity · Visual Novel

Summer Memories
Shared: Pixel Graphics · Nudity · Multiple Endings

Love Is All Around
Shared: Dating Sim · Multiple Endings · Choices Matter

OneShot
Shared: Pixel Graphics · Story Rich · Choices Matter

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

Gaokao.Love.100Days
Shared: Dating Sim · Multiple Endings · Nudity

Yes, Your Grace
Shared: Pixel Graphics · Choices Matter · Story Rich

Milk outside a bag of milk outside a bag of milk
Shared: Pixel Graphics · Multiple Endings · Story Rich

Ib
Shared: Horror · Pixel Graphics · Story Rich