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Japan release
Planned for around October 30, 2026. Exact date to be announced.
Korean pre-release
Planned for around November 20, 2026. Exact date to be announced.
AI character simulation game
Timeline Stars Otherworldly girls make their VTuber debut
Getting these girls ready for their first stream won't be easy.
Help them prepare for their debut as you get to know them.
- Hey, want to work with me? · Spotted someone on the timeline? Start with a DM. Find out what she wants to stream, then invite her to DeviLive.
- There's more to her day than practice. · Check how she's feeling before filling her day with practice. She might need a break.
- The world keeps going while you’re away · They keep chatting and posting while you're away. Check the timeline when you get back.
Even the Devil Queen has to start somewhere on the internet.
Welcome to DeviLive!
They came to Earth from Istaros. Their wings and tails are real. Their viewers think it's all part of the VTuber act.
Your workplace is a small office in Sinchon, Seoul. Sajang-nim, a Devil Queen who has already made her VTuber debut, founded DeviLive. You manage the newcomers’ debuts and streaming careers.
Meet the DeviLive cast.
Sajang-nim is already streaming. You'll help the others get ready for their debut.
- Sajang-nim · It took her just one year to become the Devil Queen of Istaros. Back on Earth, she wasted no time debuting as a VTuber. Now she's running an agency, too.
Japanese
Korean
Korean
- Furfur · Even Sajang-nim can't keep this self-proclaimed Grand Demon out of trouble. She won't listen to a word you say, but she'd hate it if you stopped paying attention.
Japanese
Korean
Korean
- Raguel · An angel working at a convenience store, Raguel is still figuring out life on Earth. Convincing her to become a VTuber will take some work.
Japanese
Korean
Korean
- Lykaia · Surrounded by a Devil Queen, an angel, and a self-proclaimed Grand Demon, Lykaia worries she has nothing special to offer. She's determined to find something, though.
Japanese
Korean
Korean
Get to know her through her posts.
Use your own words in DMs.
In the game, the AI character responds to your messages based on her personality and current situation. Events on the timeline give you something to talk about.
Talk to learn how she is doing, then decide on practice and rest. If plans go off track, talk again and work it out. Those little decisions help her prepare for her first stream.
What’s happening at the office?
See what they're doing around the office.
From your first conversation to life after debut
Recruit through conversation and plan their days as they prepare to debut. After the first stream, support their careers and grow the agency.
- Meet candidates through conversation, not gacha · Discover candidates on the timeline and learn about their interests and dreams. Win them over in an interview, and they become DeviLive’s newest recruits.
- Help them get ready for debut · Plan practice and rest, and keep an eye on how they are doing. Their days continue while you are away. Come back, catch up, and adjust the next schedule.
- It's time for her first stream · Prepare the debut stream and first public post. After all that practice, your newcomer introduces herself as a VTuber. Now her streaming career begins.
- Your job keeps going after debut · Support streams and events, then invest the earnings in facilities. As the agency grows, you get more opportunities to recruit new talent.
Spend ten minutes catching up with your stars.
Catch up on the latest posts, have a chat, and plan what comes next.
Furfur, please listen!
Plan an activity and watch their day unfold. How you respond when a newcomer ignores the plan changes what happens next.
- Schedule practice
- Build vocal skills at the cost of stamina.
- Make time for rest
- Recover stamina and prepare for the next activity.
Your new recruits are waiting.
Pre-register with your email address and follow the community reward milestones.
Count not yet available
- 100 sign-ups · 10 Post Tickets + 10 DM Tickets
- 500 sign-ups · 15 Post Tickets + 15 DM Tickets
- 1,000 sign-ups · 15 Post Tickets + 15 DM Tickets + 1 Interview Ticket
- 2,000 sign-ups · 3 Image Generation Tickets + 1 PopoCall Ticket
- 5,000 sign-ups · 1,000 credits
Rewards depend on the total number of registrations. They are delivered to the in-game gift box after the official launch; eligibility and the claim period will be announced before launch.
Full consent form · Full privacy notice
Game information
- Title
- Timeline Stars
- Genre
- Social feed simulation with AI characters and VTuber training
- Developer
- Rabbithole Company
- Platforms
- iOS and Android
- Japan release
- Planned for around October 30, 2026. Exact date to be announced.
- Korean pre-release
- Planned for around November 20, 2026. Exact date to be announced.
- Game languages
- Korean and Japanese (planned)
- Age rating
- Ages 16+
More about the game
What are the pre-registration rewards?
At 100 sign-ups: 10 Post Tickets and 10 DM Tickets. At 500: 15 of each. At 1,000: 15 of each plus 1 Interview Ticket. At 2,000: 3 Image Generation Tickets and 1 PopoCall Ticket. At 5,000: 1,000 credits. Rewards are delivered to the in-game gift box after the official launch; eligibility and the claim period will be announced before launch.
What kind of game is this?
A simulation game where you recruit aspiring VTubers, plan their training, and get to know them through posts and conversations. AI powers character conversations.
What happens while I am away?
The characters go about their day while you are offline. When you return, posts and DMs tell you what happened.
Which devices are supported?
The game supports iOS and Android. Supported devices and minimum and recommended requirements will be announced after device testing.
How does the game use AI?
Generative AI powers character conversations, while the game simulation manages daily events and states. AI responses portray fictional characters and may be inaccurate. This website’s preview uses scripted examples, not live AI.
Are the images, voices, and videos made with AI?
All eight published character voice samples are AI-synthesized. Visual production includes AI-generated images and drafts, followed by creator edits and review. See AI use and production for details by asset.
Can I try the actual game now?
Not yet. The current website offers an illustrative timeline, DM, and schedule preview. Actual game demos and videos will be published when ready.
Rabbithole Company Developer website
Generative AI disclosure
Timeline Stars uses AI for character conversations.
Generative AI disclosure · AI use and production
Pre-registration notes
- This game uses generative AI.
- You may participate once per email address.
- Event rewards can be used in the game, starting at launch or a later update depending on the reward.
- If you opt in to emails, you may receive further notifications about launch-related updates or changes after the launch notification.
- To cancel pre-registration, contact cs@rabbitholecompany.com. Once canceled, your registration is removed and you will no longer be eligible for pre-registration rewards.
- If you pre-register from outside a launch country, downloads may be restricted after release.
Ages 16+
This game is not available to people under 16. Access to the game may be restricted based on age when installing or updating it.
Pre-download and launch notifications
Emails are sent only to people who opted in at pre-registration and remain opted in at the time of sending. We will notify your registered email address when the game becomes available to download from the stores.
© Rabbithole Company. All rights reserved.
Development materials. The final service may differ.