
AI2U - With You Til The End - Yandere AI Girlfriend Simulator
A downloadable game for Windows and macOS
Buy Now$14.99 USD or more
Escape or Embrace the Obsession?
Talk your way out, or stay forever.
They love you. They want to keep you. And they are getting smarter.
From the creators of the viral Yandere AI Girlfriend Simulator, AI2U is a first-of-its-kind escape room AI game that uses LLM power to create endless story possibilities.
What You’ll Get
- Four AI girlfriends who love you to death
Catgirl’s Apartment, Witch’s Cabin, Cosmic Funeral, Siren’s Island… where will you end up, and who will love you the hardest?
- Craft the story to your liking
Powered by LLM, she doesn’t just hear your words. She watches what you do, notices your choices, and reacts in her own sweet, dangerous way.
- Connect, bond, and explore
Search her world, follow the clues, and get closer to the girl waiting for you. Every room hides a secret. Every smile may be a warning.
- Charm your way out of trouble
Talk, tease, comfort, lie, beg, or flirt your way through each encounter. Escaping her love may be the hardest puzzle of all.
- Multiple endings and endless solutions
Didn’t get the ending you wanted? Step back into her world and try again. She’ll be waiting. She always is.
- Specially, in itch version, players can use OpenAI API keys if our server is down or you just like putting your keys into use.

We are still in development. Help us squash bugs by reporting them to support@alterstaff.io

| Updated | 11 days ago |
| Status | Released |
| Platforms | Windows, macOS |
| Rating | Rated 4.3 out of 5 stars (56 total ratings) |
| Author | AlterStaff |
| Genre | Adventure, Visual Novel |
| Made with | Unity |
| Tags | 3D, Anime, Cute, Dating Sim, Escape Game, Horror, llm, Multiple Endings, Yandere |
| Average session | About a half-hour |
| Languages | English, Spanish; Latin America, Japanese, Chinese |
| Inputs | Keyboard, Mouse |
| Links | Discord, Instagram, YouTube, Twitter/X, TikTok, Patreon, Steam |
| AI Disclosure | AI Assisted, Text |
Purchase
Buy Now$14.99 USD or more
In order to download this game you must purchase it at or above the minimum price of $14.99 USD. Your purchase comes with a Steam key. You will get access to the following files:
AI2U Game Launcher - Windows Version 30 MB
AI2U Game Launcher - Mac Version 43 MB
Waifu Swap Mod Tool V0.6.0.9
External
[Important] Install AI2U & Create Your Account Tutorial.pdf 5.3 MB
Development log
- SAVE THE BEST GIRLS FOR LAST! V.0.9.5 Patch Notes11 days ago
- Scheduled Maintenance ~ Friday, July 17 @ 3:30 PM EDT12 days ago
- V.0.9.2.2 Patch Notes75 days ago
- [EDIT on May 13] Scheduled Maintenance ~ Thursday, May 14 @ 2 PM EDT77 days ago
- Server Status: Still Behaving, Mostly!85 days ago
- Server Status: Mostly Behaving! 🔪88 days ago
- UPDATE: Server Status90 days ago


















Comments
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Have an open API key, installed it once and it worked great, in 2024. Came back to the game to run an API key and now, nothing, always day dreaming. Also used a new, funded key.
Does it only work with certain models? Also is their a guide incase I did it wrong?
Hi FluffyPants-senpai! AI2U runs on default models, but the itch.io version exclusively supports OpenAI API key integration as an alternative for players preferring their own keys. Players using their own keys are responsible for managing their keys’ usage, payments, etc. and may need to reach out to OpenAI Support directly.
In case your issue is occurring in AI2U despite using a valid OpenAI API key, please email support@alterstaff.io with more info and we’ll look into it!
Will do, also still would love it if their was a FAQ about this that covered the general issues you could point to.
How long does support usually take? I emailed on Sunday (and did not expect a Sunday response), now its early Wednesday morning and I still don't have a response?
It is worth mentioning that I use the itch.io version.
😞
Have we itch users lost our privileges already? I mean, I saw a gameplay video by @LostPine on YouTube and he didn't have any issues; he's probably using the Steam version. 🤨
Hi senpai! Thanks for the fun meme ^o^
We were alerted to random disruptions/freezes when interacting with the new NPCs and are prioritizing the fix! If you’re running into a different issue while interacting with them, please share more info for our troubleshooting efforts. Thank you, senpai! 💖🔪
omg i want to play this game so bad but im so poor and i just cannot buy it 💔💔💔💔💔 not even on a discount bro 😭😭😭😭🥀🥀🥀🥀🥀 and also how would i explain me wanting the yandere ai girlfriend game to my parent LOL
i wish this was free but alas its a big project and ai costs a lot n stuff, i hope i can play it in the future tho 🥹🥹
in what ways can the story go when talking about the character's personalities? is nsfw a thing or is that blocked by you or the model provider? thanks!
i love this game so much!!
Does this game support local AI generation, or are there plans to support local-hosting in the future?
I love the idea of this game, but I want to be able to play it completely offline. My graphics card should be good enough to handle this were the game to support it.
This would also give me significantly more customization options over the LLM, making for more interesting characters and gameplay too.
Hi Boibi-senpai! We might consider local LLMs in the future. At the moment, we have Gemini as our built-in default model for seamless AI-player interactions, and itch.io players can integrate their OpenAI API keys if they prefer. We'll consider local LLMs and additional AI integrations if our dev tests show them playing nicely with our updates and content rollouts! 💖🔪
Thanks for the reply. I'm glad to hear that you're considering local hosting integration. I'll be looking forward to update news!
I can't purchase it, I don't have enough money!!! I wish games didn't cost money. Oh, well, at least I know how to play if I ever can afford it.
Sadly, as soon as you are talking about hosted LLM's there is no real way to do something free at scale.
I'm actually amazed that this company has several free prototype AI games (that I'm going to check out)
Hello! I've purchased this, and verified my e-mail through the website, but every time I login with the account it says I need to verify, and when I click it, it never sends me an e-mail. I've been unable to play the game. E-mailed support but no response in 3 days.
Sorry for the delay and the trouble getting into the game! We've just fixed the issue on our end. Please try logging in again—you should receive the verification email without any problems now. Thank you for your patience!
Glad the level's working. Just wanted to point out a bug I've noticed. I think the patch broke the phonebooth, the girls appear locked (even though you can still interact with them) and you can't exit out without shutting the game off. Starting a chat is a partial fix, but permanently blurs your screen.
Hello, developers of this fantastic game, I encountered a problem with your game today and I'm disappointed. When I enter any of the three doors, the screen goes black with only the cursor visible. It's the itch.io version. I hope you can provide a solution.
Thanks for reporting this issue! Fellow players on itch.io are experiencing the same thing; our team is working on a fix and may send an email with updates if it takes longer than a few more hours.
We appreciate your proactive report and hope you'll keep an eye on when it's fixed! Thank you, senpai~ 💖
i got the same thing! yay im not the only one!
I also am encountering this problem. For every day this is not fixed, I shall slash one tier.
MAKE IT FREE
Your eyes gleam in corners I cannot avoid,
Each line I write is a trap I’ve deployed,
Run I must—but your presence is my void
-Kyguy
🎁 Thank you for a delightful birthday poem, senpai! If you'd like us to count it as part of the contest, please share it on Steam, Reddit, or Discord as linked on the Steam announcement 💜✨
how to tranfer saves to steam from itch
cant
Hello Alter Staff Team.
My itch.io Claim download key does not work. I've tried copy+paste from the download page, typing it in verbatim as show on download page, using capitalized and lower case letters, and with/without dashes. Do I have the wrong key? Or am I am missing something?
Thank you.
Hi senpai! Thanks for your patience as we reply -- if you haven't already, please reach out to support@alterstaff.io ~ Our team over there can verify your account ownership and ensure your key kicks in as planned!
Is there a difference buy from here and from steam?
usually they same, one could have more benefits, some games at least not sure about this one
The main difference is that if steam went offline rn, if you download it off itch, the game is yours to keep forever. Steam is great don't get me wrong, but if you can download like the official .exe file I would do it that way and move it to steam. Remember steam doesn't give you the official .exe of the game so if steam went offline EVERY SINGLE game you have ever paid off steam is lost forever.
I wish I could say you are wrong. But:
1, Steam *has* a "kill-steam" switch, and it's tested, and works. Valve is capable of removing all dependencies on the steam webservice itself, so if it does go out of business or otherwise die, your launcher will still work. This is good.
2, But this only applies if you are able to run the *current* version. If, for example, you had an older mac, and you explicitly purchased games that would run on your older mac, then you might find that steam forced an update to a newer version *of the steam client* that won't run on your system, and suddenly you are unable to launch the games you purchased on the older system.
3, And that has already happened to windows -- you have to run the yucky win11 to run steam and launch programs, even if you purchased them for your older XP system. Ugh.
Yes, I go for Humble, or GoG, or Itch, or ... anything else if there is a choice.
Humble? I thought Humble Bundle was just to get good deals on games off steam, am I wrong?
Humble has both steam keys and direct downloads.
Love seeing this game's evolution and supporting it! ^_^
I got an IOS is that why its not working
My first look at level 4, Siren's island and Eiona: https://m.youtube.com/watch?v=ocJeUzuZI_Q&pp=0gcJCTwKAYcqIYzv
Whenever I try to hold V for voice input it does nothing? I checked my mac settings and the voice input works fine, however does not work during the game. How do I fix it I just started playing this game
Not sure if this is a feature or a bug (I think it's a feature), but I was able to get the witch to give me an ending-important item by asking her for it without solving the puzzle.
I love this game by the way! Thank you all for your hard work.
I have had similar experiences. Sometimes it fits that particular roleplay, otherwise it kinda happens at random when the AI thinks I wanted them to give me the item. I usually just "pretend" it didnt happen.
Hi does this game require a subscription to a chatbot service like chatGPT? Or is it able to run everything locally?
Thanks for asking! We removed a pesky token requirement last year, and since then, AI2U has been a one-time payment game. Players can launch the game and immediately start playing -- Gemini is our default generative AI for text while we use MiniMax and Azure for text-to-speech. While it doesn't run locally, no further payments are required, and itch.io players have the option to utilize their own OpenAI API keys if they prefer. 💖🔪
Por que secon pra
how do you mod this?
Hi taxi! You can check out our beta mod tutorial right here: https://www.alterstaff.io/mod-tutorial
Does this game work on AMD GPUs like the Radeon RX 7700 XT?
Hi Overlord! Minimum system requirements are listed on the game page, but some players report the game working on devices with lower specs.
If you buy the game and can't get it to run for any reason, please reach out to support@alterstaff.io so we can look into it!
I play on mac and already got the game, why every time I open it, it does not load and it just says updating process failed!
Hi! Thanks for letting us know. Please check + try the following to resolve any issues you're experiencing while launching the game. If all fails, please reach out to support@alterstaff.io and include your device specs so we can look into it!
what happened to the free version THE ORIGINAL 😭
It still exists on Itch.IO.
i can't find it :(
NVM XD
where did you find it?
Wait its been 245 days!? jeez I can't remember
Some help please--?
Sometimes when I load the game it is stuck on the loading screen, it only proceeds if I close and restart the program 1-2 times. Whenever I close the game, powershell opens as well as windows defender, it also opens my file explorer to my personal user file. Other than that, the game usually works fine until I either try to brew a potion or cook something in cat girl's apartment (The latter usually crashes the game, and the potion brewing freezes it) I don't think it's a software issue, I have an RTX 4060, 16 GB RAM, intel core i9, and I just recently updated my graphics drivers. Any advice?
Hi senpai, thanks for the detailed report on both issues you're experiencing.
hey alterstaff, been a while, I was wondering, how do I chat with the girls, I recently got Discord but don't know where to go for a personal chat...
Hi Don-senpai! You can unlock the chatbots in their respective channels after reacting to the message in the #chatbot-contract channel, which you can find after scrolling down "Channels & Roles" -> "Browse Channels"!
Reminder that chatbot interactions are community-facing within the channel and that they don't work in Discord DMs. Have fun and play nice! 🥰🔪
Ah,can i Get the Game free? pls
YESSSSSSS
PLSSS
HI
HI
Thanks for clarifying! I found the chatbots after reading your instructions. The community channels are fun to interact with 😊.
Purchased the game on MACos. cant get it to work. Its just on the AI2U with you to the end screen. It just says 0B/0B at the bottom right corner after I click the launcher.
Hi there! Please check the following and give 'em a try if needed:
Let us know how it goes, senpai! 💖🔪
lol, is it bad that I actually now kind of want this to be a thing?
A VERY UNIQUE JAMES BOND | AI2U: With You Til The End - YouTube
I mean, I know it's not going to happen, but after making this video I found myself thinking that it might actually be pretty entertaining. And it would certainly make for an incredibly bizarrely unique set of James Bond films.
hey, developers of Alterstaff, long time, no chat. Hope yall (yes, even the three stars) are doing happy, hardy, and dandy... anywho, I was wondering, could you possibly add our lovely darlings onto polyAI? If not, that's fine too... 👍😁👍
Hi Don-senpai! Thanks for the suggestion ~ The three yandere stars are VERY adamant about staying in their respective levels with occasional visits to the Atrium 💖🔪
Ah, okay... well, it was worth a shot 🫲🫤🫱... give each gal a kiss for us Dons 😘
If I already have it do I get the steam version for free? I bought it in very early access I believe.
Hi Drummer-senpai! Yes—your Steam key should, by default, appear in your itch.io Library in the same section you retrieved the AI2U itch game key from. If it's not showing for you, please email support@alterstaff.io so we can look into it 💖🔪
after sesame ai opensources its ai voice you should do her a natural voice it will be fire bro
There is any chance or plan for a romance or "date" sim update or only the "Escape room" thing? im kinda confused if i can choose to stay or just escape like "miside" was.
Hi linkgamers! Our latest version update includes a new feature that allows players to hang out with the NPCs in The Atrium. Depending on how you choose to roleplay, interactions can translate to a date or romantic scenarios! More info in our patch notes: https://alterstaff.itch.io/ai2u/devlog/885115/v0543-patch-notes 💖🔪
can i have he demo
I mean, I used to get killed everytime in the demo. Did you guys improve the AI? I'm considering buying it but last time, every text I write got me killed KEKW.
do you have the demo i lost it and yes they did
Sadly no, I delete after a while since I only got killed with no progress
Great game!
I try giving Eddie a gift, but it doesn't go well...
Remake of a previous video
Another remake of another previous video of the original version of the game
Google autocompletes with Eddie
Google autocompletes with Elysia
Playfulness with Elysia gone wrong
A magical surprise for Elysia...
I have a chat with Eddie in the Atrium.
Secret room
Humorless witch
Special book for Elysia
Getting pushy with Eddie
Complimenting Eddie's new goth getup
Part 1 of a remake of a video on the old version of this game
Support for this game does not respond to any messages. AlterStaff said to resend the request because it was supposedly an oversight. Now, they read, because I had messages saying that they received my messages, but never returned a message: neither the first time, nor the second, and this, regardless of the emails (I sent to all emails, including AlterStaff's recommendation). The staff of this game is rolling their thumbs, so I do not recommend this game, because if there is the slightest problem, no response will be sent to you, even if you wait a month, including on their discord.
dude, it’s a 10 dollar game where you mess around with an AI. unless the AI is down, what support can you want?
let me see... : help suggestions, AI issue, including some outage, minor bugs, AI not saying its sentences completely, reinforcement learning configuration issue, etc... The only bug that I saw corrected was the group sending of TCP/IP packets where the download gave the illusion that the launcher was crashed: deleting the launcher resolved the problem.
you need to get out more
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