Games like 君の心臓とコスモスを見る
Games like 君の心臓とコスモスを見る include Senren * Banka, PARANORMASIGHT: The Seven Mysteries of Honjo, 他人世界末 On-looker, ATRI -My Dear Moments-, and 候鸟. We matched them by the tags players give 君の心臓とコスモスを見る on Steam (Adventure, Visual Novel, Text-Based, Dating Sim, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Senren * Banka
Shared: Visual Novel · Dating Sim · Anime

PARANORMASIGHT: The Seven Mysteries of Honjo
Shared: Adventure · Visual Novel · Text-Based

他人世界末 On-looker
Shared: Visual Novel · Dating Sim · Text-Based

ATRI -My Dear Moments-
Shared: Visual Novel · Anime · Dating Sim

候鸟
Shared: Adventure · Dating Sim · 2D Platformer

Doki Doki Literature Club Plus!
Shared: Visual Novel · Dating Sim · Anime

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

Tricolour Lovestory
Shared: Visual Novel · Dating Sim · Anime

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

Aokana - Four Rhythms Across the Blue
Shared: Visual Novel · Adventure · Anime

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Anime · Adventure

STEINS;GATE: My Darling's Embrace
Shared: Adventure · Visual Novel · Dating Sim

Fox Hime Zero
Shared: Visual Novel · Anime · Adventure

Milk inside a bag of milk inside a bag of milk
Shared: Visual Novel · Adventure · Text-Based

The Great Ace Attorney Chronicles
Shared: Adventure · Visual Novel · Text-Based

Lay a Beauty to Rest: The Darkness Peach Blossom Spring
Shared: Adventure · Visual Novel · Dating Sim

Fox Hime
Shared: Visual Novel · Adventure · Anime

Hamidashi Creative
Shared: Adventure · Visual Novel · Dating Sim

Summer Pockets
Shared: Adventure · Visual Novel · Anime

Maitetsu:Last Run!!
Shared: Visual Novel · Anime · Adventure

eden*
Shared: Visual Novel · Adventure · Anime

Love Is All Around
Shared: Dating Sim · Visual Novel · Singleplayer

CLANNAD
Shared: Visual Novel · Anime · Dating Sim

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