Games like DoppelTest
Games like DoppelTest include NEEDY STREAMER OVERLOAD, The NOexistenceN of you AND me, Lucy -The Eternity She Wished For-, ATRI -My Dear Moments-, and OPUS: Echo of Starsong - Full Bloom Edition. We matched them by the tags players give DoppelTest on Steam (Adventure, Visual Novel, Choose Your Own Adventure, 2D, and Cute): closest matches first, and among equally close ones the better-known games.

NEEDY STREAMER OVERLOAD
Shared: Visual Novel · Anime · Cute

The NOexistenceN of you AND me
Shared: Visual Novel · Anime · Cute

Lucy -The Eternity She Wished For-
Shared: Visual Novel · Anime · Cute

ATRI -My Dear Moments-
Shared: Visual Novel · Cute · Anime

OPUS: Echo of Starsong - Full Bloom Edition
Shared: Visual Novel · Anime · Emotional

WITCH ON THE HOLY NIGHT
Shared: Visual Novel · Adventure · Anime

Love, Money, Rock'n'Roll
Shared: Visual Novel · Anime · Atmospheric

Far Away
Shared: Visual Novel · Choose Your Own Adventure · Adventure

Higurashi When They Cry Hou - Ch.1 Onikakushi
Shared: Visual Novel · Anime · Adventure

OneShot
Shared: Cute · Indie · Adventure

Finding Paradise
Shared: Adventure · 2D · Emotional

Refind Self: The Personality Test Game
Shared: Visual Novel · Adventure · 2D

Summer Pockets REFLECTION BLUE
Shared: Visual Novel · Choose Your Own Adventure · 2D

Fate/stay night REMASTERED
Shared: Visual Novel · Anime · Adventure

Doki Doki Literature Club Plus!
Shared: Visual Novel · Anime · Cute

Fox Hime Zero
Shared: Visual Novel · Cute · Anime

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Visual Novel · Adventure · Anime

Petit Game Collection vol.1
Shared: Adventure · Visual Novel · Choose Your Own Adventure

Raging Loop
Shared: Visual Novel · Adventure · Indie

Until Then
Shared: Visual Novel · 2D · Emotional

To the Moon
Shared: Adventure · Indie · Emotional

The Test
Shared: Choose Your Own Adventure · Visual Novel · Multiple Endings

Fate/hollow ataraxia REMASTERED
Shared: Adventure · Visual Novel · Choose Your Own Adventure

Stray
Shared: Adventure · Cute · Atmospheric