Games like Star Witch
Games like Star Witch include Summer Memories, Yokai's Secret, your wife, Clair Obscur: Expedition 33, and Muse Dash. We matched them by the tags players give Star Witch on Steam (Sexual Content, RPG, Hentai, Casual, and JRPG): closest matches first, and among equally close ones the better-known games.

Summer Memories
Shared: Sexual Content · Hentai · RPG

Yokai's Secret
Shared: Sexual Content · Casual · Hentai

your wife
Shared: Sexual Content · Hentai · Casual

Clair Obscur: Expedition 33
Shared: RPG · JRPG · Fantasy

Muse Dash
Shared: Sexual Content · Casual · Hentai

Yarimono
Shared: Sexual Content · Hentai · RPG

Lunar Mirror:The Pavilion of Desire
Shared: Sexual Content · Hentai · RPG

Baldur's Gate 3
Shared: RPG · Sexual Content · Fantasy

FINAL FANTASY
Shared: RPG · JRPG · Exploration

Natsu no Sagashimono What We Found That Summer
Shared: Sexual Content · Hentai · RPG

Pretty Neko
Shared: Sexual Content · Casual · RPG

Dusk Pub - Adult Only
Shared: Sexual Content · Hentai · RPG

Seek Girl Ⅲ
Shared: Sexual Content · Hentai · RPG

Lost
Shared: Sexual Content · Casual · Hentai

Your Mom
Shared: Sexual Content · Hentai · Casual

West Sweety
Shared: Sexual Content · Hentai · Casual

NEKOPARA Vol. 0
Shared: Sexual Content · Hentai · Casual

Seek Girl Ⅳ
Shared: Sexual Content · Casual · Hentai

NEKOPARA Vol. 3
Shared: Sexual Content · Hentai · Casual

NEKOPARA Vol. 1
Shared: Hentai · Sexual Content · Casual

Swaying Girl
Shared: Sexual Content · Hentai · RPG

Pretty Angel
Shared: Sexual Content · Casual · Hentai

Sakura Dungeon
Shared: Sexual Content · RPG · Dungeon Crawler

Latex Dungeon
Shared: Sexual Content · Hentai · RPG