Games like Everlasting Summer
Games like Everlasting Summer include CLANNAD, ATRI -My Dear Moments-, LoveChoice, STEINS;GATE, and Undertale. We matched them by the tags players give Everlasting Summer on Steam (Visual Novel, Free to Play, Story Rich, Anime, and Choices Matter): closest matches first, and among equally close ones the better-known games.

CLANNAD
Shared: Visual Novel · Story Rich · Anime

ATRI -My Dear Moments-
Shared: Visual Novel · Anime · Story Rich

LoveChoice
Shared: Visual Novel · Story Rich · Romance

STEINS;GATE
Shared: Visual Novel · Story Rich · Anime

Undertale
Shared: Story Rich · Great Soundtrack · Choices Matter

Tricolour Lovestory
Shared: Visual Novel · Anime · Great Soundtrack

Senren * Banka
Shared: Visual Novel · Anime · Romance

NEKOPARA Vol. 2
Shared: Anime · Visual Novel · Story Rich

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

Dispatch
Shared: Story Rich · Choices Matter · Nudity

NEKOPARA Vol. 1
Shared: Anime · Visual Novel · Story Rich

Phoenix Wright: Ace Attorney Trilogy
Shared: Visual Novel · Story Rich · Great Soundtrack

Doki Doki Literature Club Plus!
Shared: Visual Novel · Anime · Story Rich

STEINS;GATE 0
Shared: Visual Novel · Story Rich · Anime

NEKOPARA Vol. 3
Shared: Anime · Visual Novel · Story Rich

eden*
Shared: Visual Novel · Story Rich · Anime

NEKOPARA Vol. 0
Shared: Visual Novel · Anime · Nudity

Summer Pockets
Shared: Visual Novel · Anime · Story Rich

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Anime · Story Rich

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Anime · Story Rich

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

Fate/stay night REMASTERED
Shared: Visual Novel · Anime · Story Rich

Love Is All Around
Shared: Visual Novel · Singleplayer · Romance

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