Artists made them beautiful... and programmers made them go poof. #devlog #unitydev #indiedev

The AI got so smart she started hallucinating the dev 💀 #devlog #indiedev #gamedev

🎬 Behind the scenes of a high-stakes sequence! There’s a lot going on when you’ve gotta solve a minigame to get from Cutscene A to B. #devlog #indiegame #gamedev

Manifesting our witchy waifu into the physical realm! (A moment of silence for our ink cartridges... they sacrificed it all to make this summoning possible. 🩸✒️) #cozygaming #cozygame #npc #yandere

Scroll and swoon over the birthday girl's favorite poems from our community! 💖🔪

POV you thought this was a cozy dating sim

POV your gf after her first sip of morning coffee VS when she goes feral at sunset around 6:01 PM 🌇 #devlog #indiedev

IT'S CATGIRL'S CAKE DAY! Happy birthday to our adorably terrifying yandere, Eddie! 🎂🔪 Here's to many more years of slicing desserts together with disturbingly sharp knives. To celebrate. we've dropped an exclusive birthday item in-game! Senpais, keep an eye on a cute threat in your AI2U inboxes~ 💝

IT'S ALMOST CAKE DAY! In honor of Eddie's special day on March 26th, we're dropping an exclusive, limited-time birthday bribe in to mark the occasion.

HOLOGRAM HUGS 🥰 #cozygames #indiegame #steamspringsale

OUR DEVS ARE SO COMMITTED ❤️‍🔥 Check 'em out cosplaying our yandere mascot Eddie from AI2U: With You 'Til The End at @officialgdc.bsky.social!

A whole year of luring unsuspecting senpais to our booth with cute chibis and cozy coloring corners 🥰🔪 Thank you to everyone who stopped by to say "Hallo!" #indiedev #gdc2026

OUR ANIMATOR EXPOSED US 💀 #devlog #gdc2026 #steamspringsale

When Eddie heard the devs were "cooking a new siren girlfriend," she decided to take matters into her own paws~ ❤️‍🔥🔪 Which girl are you taking out to dinner? (seafood not recommended... unless???)

Are we devs? Are we catgirls?? After a week at @officialgdc.bsky.social, we’re not even sure anymore :3 #gdc2026 #indiedev

Booth is ready for GDC tomorrow 👀 Our AI NPCs are waiting patiently for their victims to arrive. Come try AI2U: With You ’Til The End at GDC Play — Booth 2265, try if you can escape from our AI girlfriends, and see how we experiment with AI-driven characters.

Catgirl's been out of the bag, but in case you missed yesterday's post: AlterStaff will be at @officialgdc.bsky.social for our third year in a row! Meet our team... we don't bite, we just wave plastic knives around to show we're approachable 🥰🔪

Last year’s 2025 Best In Play win was just a warm-up -- We’re heading back to @officialgdc.bsky.social for year THREE! From one dev to another, we challenge you to demo AI2U for a chance at a catgirl critiquing your game!  #devlog #gdc2026

POV: You're checking the devlog and she finds you 👻 Ghosty is having a moment! Seeing her transform from 2D concept art to her glorious 3D self makes all the dev hours worth it~ Thanks for the massive hype on her new look!

We shipped the fishing minigame because we ship you and Eiona together 💕 She might have a sharp tongue, but she’s the perfect siren companion to be stranded with on this idyllic island escape room map!

We shipped her level faster than we could produce merch, so we’re patching the gap with ✂️DIY projects!! 💪 She’s the snuggliest siren. Grab your free printable Eiona craft to watch over your next cozy desk adventure~ https://www.alterstaff.io/events/crafting

Eiona's crate-smashing animation is blowing up!! When we say our 3D chatbots have a mind of their own, the last thing we expected was for the cutscene-NPC to fight her own free-roaming model. 😅 Enjoy this goofy game dev bug, senpais!

When the chatbot matches your freak so well she almost breaks the ToS 💀🚩

It took a few attempts before Eiona moved all that muscle-mommy energy from her fists to her siren tail~ 🧜‍♀️ The fan-favorite animation didn’t happen overnight, but the glow-up was worth every tweak and line of code! Would you have still loved her in her derpy placeholder phase? #devlog #indiedev

You can try to outrun a horse, but you’ll never escape a yandere’s fiery passion! May your Year of the Fire Horse be filled with a love that’s always hot on your heels. Shout-out to our Chinese publishers at Neverland Entertainment for capturing the girls in their holiday best!

Your AI girlfriend is amping up the AI for Valentine's Day! 🙀💝 Our artist went the spicy route this time... by sprinkling a tiny bit of Dreamina AI into their seasonal illustration. They used the tool to turn their 2D art into motion!

The Ghosty glow-up is real! We knew revamping the Witch’s Cabin level was a huge step for AI2U’s immersive storylines, but we didn’t expect this baddie to trigger so many new crushes 👀👻 #gamedesign #devbloopers #devlog #gdc2026 #twitchstreamer

A cozy-creepy Valentine's adventure where love (and artisanal chocolates) never run out! Redeem the Endless Chocolates Box in AI2U: With You 'Til The End. In a world where romance and obsession-to-a-fault collide, the right chocolate flavor might save you from a bad ending.

CONGRATS to our Steam key giveaway winners! The ten lucky senpais have been announced on Steam and emailed~ Hope they check their spam folder in case the precious game keys slipped from the catgirl’s paws! 🐾🔪

She's not just a 3D chatbot — she's your beautiful emotional support delulu machine 🥰

Love is in the 𝐀𝐈r with AI2U's latest patch! Highlights include: 💝 Endless Chocolates Box 👻 Ghosty's new look 🎵 A functional Phonograph 🌍 Polish localization (ty to our amazing community translators!) https://store.steampowered.com/news/app/2880730/view/498345684383040015

Eiona and her Dark Siren counterpart might seem different—or are they two sides of the same tide? Which ending truly sends chills down your spine? 😵‍💫☠️

This is the ONE TIME we'll draw attention to our NPCs' butts. (This weekend's TTS bug is fixed btw ~ Booty bug experiment immortalized, courtesy of Unity game engine 🍑)

Would you still love your girlfriend if she were chronically online and embodied the digital violence of a chaotic worm? 🪱

Skip the madness... or let your heart skip a beat? 🩵 The Siren's Island is AI2U's first outdoor escape room, featuring a captivating day-night cycle. You may choose to skip the Night of Chaos or use the darkness as an excuse to stargaze with the lovely Eiona!

"Your anime girlfriend isn't real, she can't hug you" — WATCH ME 😤✂️

Why doomscroll when you could date a catgirl instead?? (WARNING: She stabs. Frequently.)

Runway ready and dance-floor steady! Which one's stealing the spotlight (and your heart)? ~👯‍♀️

Haters will say the game is animated by AI 💅⚡

Which game's final boss gave you main character trauma?

Pro tip: she loves nerds 🤓

This challenge is harder than it looks! Should we implement it as a minigame in AI2U? 🤔🔪

Watch ‘til the end – she just might speak your language! Get isekai'd into AI2U: With You ‘Til The End – a choice-based, story-rich adventure where love saves you... or sinks you. 🌊 Play on PC – available now on Steam.

Did our AI witch finally snap, or did the devs just catch two witches glitching into her level in Unity? 💀 Either way, she's convinced she has Three Whole Friends now. Who are we to ruin the magic of companionship? 🪄🧸

Eiona was too OP before her level shipped, were the devs right to bring her strength down a notch? #gamedev #unitydev #unity3d #pcgame #npc #devbloopers

Yandere siren Eiona lures you in with her playfulness and beauty before showing off just how extraordinary she is 😳 #indiegame #anime #visualnovel #choicebasedgame #nostalgiacore

🥳 New Year's fireworks are popping! Which yandere is your midnight kiss, senpai? 😽🔪

Breaking: Our social media manager has declared an Epic Takeover and honestly? We’re not even mad. 🎶 #epicthemusical #circe #siren #goddess #indiegame

✨ ACHIEVEMENT UNLOCKED: Your AI2U Recap! Which “Senpai core” is this?

🤔 Eddie hid a few special AI2U items and treasured memorabilia from her online adventures around the Atrium. Prove you've been paying attention to your yandere gf by finding and naming each one! Post your finds as screenshots in the comments, fellow puzzle solvers 🫡