Screenshots
Watch trailer on Steam ↗REDLINE — Strings of Fate
Moteru Games · Published by Moteru Games · Official site ↗
Content notice: This game contains mature themes including psychological manipulation, violence, alcohol/tobacco use, mild profanity, suggestive content, and themes related to self-harm.
Last updated 28 Sept 2026
A sci-fi otome game where your choices shape love — and the future of society.
Adventure, Indie · More free games
About this game
REDLINE is a sci-fi romance visual novel set in a near-future coastal city in southern Japan where gifted individuals can perceive, interpret, and influence human emotions — abilities now at the center of scientific research and corporate ambition.
You play as a university student with the rare ability to perceive emotional connections as red threads. As you become entangled in a secretive research program and drawn toward five distinct love interests, your choices will shape not only your relationships, but the fate of society itself.
Souta Aihara
CA: Kieran Regan
Souta used to look out for you long before either of you knew where life would lead. After years spent apart, that hasn’t really changed. He has always been a constant in your life, even when distance turned him into an edge case and timing pushed him out of context. Now that the parameters have changed, you’re stepping into the next chapter together. Almost like before…
Rei Minzuki
CA: Corey Wilder
As a martial arts ace with a laid-back demeanor, Rei has earned his place as Redhaven University’s campus favorite without ever appearing to try. Considering how little effort he seems to invest in his studies, one can’t help but wonder how he ended up at RHU at all. Then again, it hardly matters.
Leiv Kazama
CA: Jimmie Yamaguchi
Whether in academic circles or within the boardrooms of the country’s leading tech corporations, the name Leiv Kazama is hard to overlook. At twenty-seven, he stands at the intersection of research, power, and responsibility. A junior professor by title, a CEO by profession, and a man whose decisions tend to shape more than just his own future.
Takuma Shinonome
CA: Brian Timothy Anderson
Fresh out of medical school yet already deeply embedded in the research halls of SYNEVIS, Takuma is far more at home in the quiet solitude of his laboratory than in crowded rooms. Between the infimum and supremum of light, human emotion registers as chromatic outliers — patterns he can observe with precision, though not always interpret.
Aziel Viré
CA: John Patneaude
Following in the footsteps of his uncle who once led SYNEVIS, Aziel now stands at the helm of the institute’s future. Where his predecessor earned loyalty through trust, Aziel, it seems, prefers something more reliable. After all, when you understand the thread that moves a heart, guiding it becomes almost effortless.
Planned for the full release:
Five routes with 9 endings in total
Additional CG illustrations, backgrounds, and original music
Character editor with selectable skin tones and hair colors
Integrated mini-game
In-game chat system
Character diaries and unlockable insights for each love interest
CG Gallery and wiki
Sprite variations (outfits, poses and expressions)
Voice acting
Note:
The full scope of REDLINE, including voice acting, additional features and content such as backgrounds and music, as well as further possibilities like an animated opening and localization, will depend on the success of a Kickstarter campaign following the demo release.
REDLINE is developed by a small independent team based in Germany, led by Marleen gollan (Moteru Games). Character art, additional game design input, and voice direction are created and provided by Moona and Amalia, forming the core team. The project is further supported by contributors across background art, music, and voice acting.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 x64
- Processor: 2.0 GHz or more
- Memory: 4 MB RAM
- Graphics: DirectX compatible GPU
- Storage: 8 MB available space
- Sound Card: DirectSound compatible
Supported Languages
*languages with full audio support
Latest news
AnnouncementsOfficial
REDLINE is funded on Kickstarter! On our way to the next route 🎉
We did it! REDLINE — Strings of Fate has reached its Kickstarter base goal! 🎉That means the full common route and one complete love interest route, with full English voice acting for that character, are now funded and will become a reality. This is the foundation of REDLINE, and it exists thanks to everyone who backed, shared, and cheered us on.But we're not stopping here. We're now on our way to funding a second love interest route, and every stretch goal from here unlocks even more of the story.If you want to help decide how much of REDLINE gets made, now's the time. The campaign is live, and every pledge brings us closer to the complete game.Back REDLINE on Kickstarter now!Thank you for being part of this journeyRead full article on Community Announcements (Moteru Games)AnnouncementsOfficial
Our Kickstarter Pre-Launch Page is Live!
We're excited to share that the REDLINE — Strings of Fate Kickstarter pre-launch page is now live!If you're planning to support REDLINE in order to help make the full game possible, follow our Kickstarter pre-launch page now to be notified the moment we launch.In other good news: we just got accepted into Kickstarter's Kiss & Tell open call! Given our planned launch date, we probably won't get to make full use of everything it offers — but we're still genuinely excited to be part of it.Thank you to everyone who's been supporting REDLINE so far ❤️Read full article on Community Announcements (Moteru Games)Patch NotesOfficial
Demo Patch 0.3.0: Bug fixes & Improvements
patch 0.3.0: bug fixes & improvementsnote: controller support is a work in progress, keyboard + mouse is still recommended. a more complete overhaul of the input system is planned but won't make it this month. if you do want to use a controller, make sure to disable Steam Input for this game first: click the game in your library → Controller → Disable Steam InputcontrolsDualShock and DualSense controller supportfixed an issue where opening and closing the quick menu could permanently stop the background musicsave & loadfixed a softlock that occurred when pressing S between name input fieldsaudiofixed missing voice linesfound a bug or have feedback? join us on discord and let us know — it helps us fix things faster! discord.gg/2RcKWTdHmSRead full article on Community Announcements (Moteru Games)Patch NotesOfficial
Demo Patch 0.2.0: Bug Fixes & Improvements
patch 0.2.0: bug fixes & improvements controls - improved keyboard and controller support — the following should now work: · opening and closing all menus · text advance · selecting and confirming choices · autoplay and skip (for previously read sections) · toggling the UI · in-game menu can now be closed with ESC or RMD · text advance via mouse click fixed in all areas of the screen - known limitation: keyboard/controller submit in the title menu, in-game menu and save/load menu is not yet fully supported — a follow-up patch is planned story & choices - fixed a softlock triggered by the "if you insist" choice - fixed a few typos save & load - fixed a bug where the save menu would behave like the load menu after loading a game, making it impossible to save ui & feedback - autoplay segments now show an info notification when they start audio - BGM tracks now loop correctly and no longer stop during longer scenes - fixed missing voice lines visuals - fixed a text flicker during the transition from the last scene to the epilogue found a bug or have feedback? join us on discord and let us know — it helps us fix things faster! discord.gg/2RcKWTdHmSRead full article on Community Announcements (Moteru Games)
