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
Arx Temporis
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
A story-rich anime action RPG combining real-time combat, school life, and social simulation. Fight through procedurally generated dungeons, build relationships, and uncover the truth behind a mysterious temporal threat.
- 2
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?
- 3
Springs, Eternal
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
Explore a mysterious hot springs in the dead of night and meet the other lost souls who are drawn to this place.
- 4
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.
- 5
REDLINE — Strings of Fate
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
A sci-fi otome game where your choices shape love — and the future of society.
- 6
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.
- 7
Enjoy Amoy&Sisters
Single-player alternative to Heartlines — playable solo, no multiplayer required. Shares Indie and Adventure with Heartlines.
"Enjoy Amoy & Sisters" is a live-action interactive romance game. You play as an overseas Chinese person who, in response to the invitation from the two female leads, Ah Yin and Xiao Xi, visits Xiamen, the ancestral hometown, for the first time.
- 8
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?