Single-player games like Heartlines
Below are 8 single-player Steam games similar to Heartlines, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Heartlines page.
Ranked picks
- 1
Infected Love : The Fatal Experiment
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
Infected Love: The Fatal Experiment is not just a survival game — it’s a fusion of horror, romance, and unforgettable choices. Are you ready to confess your love… when the world is falling apart?
- 2
幻觉病理
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares RPG with Heartlines.
"Illusion Pathology" is a suspenseful and slightly scary B female love game. You will wake up as a doctor in a mental hospital, and become entangled with three suspicious "patients" around you, and your life and memory will be gradually revealed.
- 3
STARLET☆DISORDER
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
Join STARLET☆DISORDER, the reality show: get famous, loved, watched. Live with rivals. Perform love. Survive confessionals. Go viral. Truth is ammunition. But there’s no clean truth. Broadcast turns your week into a story that never happened. Go live and swear you didn't mean it. It’s all recorded.
- 4
Love Is All Around
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
The player becomes Gu Yi, uses the first-person perspective to immerse himself in meeting six beauties, and embarks on a joyful and sweet love journey with them. Six girls that are charming, innocent, intelligent, wild, sexy, glamorous, who will go to the end with you is up to you to decide.
- 5
BeYourCat
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Simulation with Heartlines.
"Be Your Cat " is a real love game,like an experience in life, one interesting dream. We all wish we had superpowers, but what would you do if one day you had superpowers, but not like Superman? What will you do with your limited abilities? How does it affect and change the people around you?
- 6
Knowledge, or know Lady
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
You, the "sole male student" at a women's university, are about to embark on a sweet and laughter-filled campus love journey from a first-person perspective! How will you resist the temptations of the beauties and create your own legend in this girls' school?
- 7
Beauties! They're All After Me
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
In this thrilling romance game, players are a working-class hero meeting six girls: a loli, a mature woman, a housewife, a soft girl, a domineering CEO, and a cute, naive girl. As he gets involved with them, he awakens a cheating system—can you believe it?! Make your final choice now!
- 8
Dating 4 Girls
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
On the night of the comet, you unexpectedly enter a dating game, where three characters—Mona, Feifei, and Jiayi—are real. Mistaken for a criminal by policewoman Andy, you must find true love before the server shuts down, while a conspiracy quietly unfolds.