Games like Under the Gray Sky
Games like Under the Gray Sky include ATRI -My Dear Moments-, Far Away, Tiny Bunny, The Hungry Lamb: Traveling in the Late Ming Dynasty, and STEINS;GATE. We matched them by the tags players give Under the Gray Sky on Steam (Adventure, Visual Novel, 2D Platformer, Choose Your Own Adventure, and Cute): closest matches first, and among equally close ones the better-known games.

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

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

Tiny Bunny
Shared: Visual Novel · Dark · Adventure

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

STEINS;GATE
Shared: Visual Novel · Anime · Sci-fi

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

Senren * Banka
Shared: Visual Novel · Cute · Anime

The Wolf Among Us
Shared: Adventure · Visual Novel · Choose Your Own Adventure

eden*
Shared: Visual Novel · Adventure · Anime

planetarian HD
Shared: Visual Novel · Adventure · Anime

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

Muv-Luv
Shared: Visual Novel · Anime · Cute

Fox Hime Zero
Shared: Visual Novel · Cute · Anime

AI: The Somnium Files
Shared: Visual Novel · Adventure · Anime

NEEDY STREAMER OVERLOAD
Shared: Visual Novel · Anime · Cute

Marco & The Galaxy Dragon
Shared: Visual Novel · Adventure · Anime

STEINS;GATE 0
Shared: Visual Novel · Anime · Adventure

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

Stellar Code
Shared: Adventure · Visual Novel · 2D Platformer

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

It was a human.
Shared: Adventure · Visual Novel · Choose Your Own Adventure

Raging Loop
Shared: Visual Novel · Adventure · Indie

Stella of The End
Shared: Adventure · Visual Novel · Anime

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Anime · Adventure