Games like My GF Doesn't Know What I'm Into on Steam
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Love Ribbon
"Love Ribbon" is a yuri (girl x girl) visual novel about forbidden love between two sisters.
Flashback
Flashback is a strategy game oriented to your choices. You will play the role of a deliveryman and live in a turbulent city for a month. You will meet various characters and experience events, and those characters' fates will cross and they will usher in their own futures based on your choices.