Discover a desktop AI companion that explores, interacts, plays, learns from physical experiences and develops activities of her own.
Alpha for Windows · purchases open soon
Developed by Matias Games DEV
Real captureUp on the platformShe used a box as a step to climb here.
PhysicsNothing teleportsHer palms must touch a box before she can lift it.
Raiku lives at the edge of your Windows desktop with boxes, blocks, crates, a ball and a high platform. Every object is physically simulated: it has weight and friction, stays where it is put, and only moves when something moves it.
Carrying, placing, stacking — real captures at native size, build r68-b61. In the app the background is transparent; the sky is this page.
Her replies are grounded in the facts of her body and her world. If she claims to have finished something the engine didn't confirm, that reply is rejected and rewritten.
Every decision Raiku makes is carried out by a full 3D body — feet that plant, reach that is measured, hands that must really touch what they hold.
Weight on her feet, steps that plant, knees that bend when she crouches. She gets herself up to high places and back down again.
Both hands for a box; one hand for her ball — she chooses which. What is too heavy to lift she pushes, standing or crouched, or drags by its handle walking backwards.
She builds towers and staircases and takes them apart again, deciding where to stand, which piece goes next and what her reach allows.
When a place is too high, she uses a box to climb. Once a strategy has worked, she keeps it in memory and uses it again.
She doesn't know how heavy a crate is until she touches it. What she feels becomes a belief about that kind of object. How she learns
She picks the ball up with whichever hand suits her, brings it close to look at it, can wave with her free hand while holding it, and gives it a gentle toss — after that, the ball's own physics decide how it bounces and rolls.
In a 15-minute session with no instructions at all, she chose to play with her ball by herself — picking it up, examining it and tossing it — and then moved on to another activity (build r68-b60). The frames above come from scripted test scenes.
No model is retrained. Raiku keeps experience records and beliefs on your PC — what she tried, what she felt, which strategies worked. Beliefs can be revised: when a new experience contradicts an old one, she becomes uncertain instead of stubborn.
Nobody has to tell her what to do. Left alone, she weighs what she could do next — curiosity, play, projects and rest compete — and picks something.
Towers and staircases — and taking them apart. Unprompted, she once built a three-block tower.
She walks over to things in her world and looks at them.
Her ball: pick it up, look at it, toss it, move on.
Small experiments, like pushing a crate to find out whether it moves — and noting the answer.
She draws in the air with her finger.
Taking a break and doing nothing is a choice too.
Seen in unscripted sessions of the Windows app: a three-block tower she built on her own initiative (r68-b43), an object experiment (r68-b54) and ball play (r68-b60). STOP interrupts any activity.
Perception, decision, planning, action, experience, memory — and back to perception, now knowing a little more.
She sees the shapes, sizes and positions of the objects around her. Weight and friction aren't visible: those she only believes until she touches.
Curiosity, play, projects and rest compete; she picks an activity herself, or does what you ask in the chat.
Steps her body can actually do: where to stand, how far she can reach, which hand, what to move first.
Her body carries it out with planted feet and palms that must measurably touch. Reflexes like grip and STOP run every frame.
What actually happened is measured: did the object move, how heavy did it feel, did the plan work.
Saved on your PC — a diary of what she did, strategies that worked, beliefs about materials — and used for the next decision.
Every image is a frame from the running Windows build — no renders, no concept art, no AI-generated pictures. Most come from scripted test scenes, and each caption says what really happened.
Transparent and simple. Sales are not open yet — this is the price they will open at.
Windows desktop app · activation key by email
Purchases open soon — no payment can be made yet
Raiku is in alpha. Sales open when a release build is certified and the license terms are published.
Raiku is a Windows (64-bit) app. It is developed and tested on Windows 10 Pro with an NVIDIA GTX 1650 (4 GB). Official minimum requirements will be confirmed before launch — until then we won't promise compatibility we haven't tested.
When you leave her alone she chooses her own activities — building, exploring, playing, investigating, drawing or resting. You can also ask her for things in the chat.
You are always in charge: STOP halts everything at once, and a project stopped with STOP doesn't restart by itself.
No. Raiku is software: an interactive virtual companion with a simulated body, autonomous behaviour and memory. Her expressions show functional states — what she is doing, attempting or unsure about — not emotions.
She learns from experience, not by training a neural network. She keeps records of what she tried and felt, strategies that worked and beliefs about objects (for example, that crates of a certain material are heavy). They are stored on your PC, survive a restart and can be revised by new experience.
Conversations, memories and her world are stored on your PC. Activation sends only your key, a random installation id created by the app and the app version — no hardware fingerprint. A purchase stores your email and PayPal order references to deliver and manage your license.
The full privacy policy will be published before sales open.
Conversation runs on a local language model on your PC. Internet is needed to activate your key and, from time to time, to renew the activation; in between, an activated copy keeps working offline for a grace period.
There is no public installer yet. When a build passes certification, the installer, its checksum and release notes will appear on the download page.
After purchase you receive an activation key by email. Open Raiku, go to Settings › License, paste the key and press Activate. More about activation.
Deactivate Raiku on the old PC (Settings › License) and activate the same key on the new one. How many PCs a key covers will be fixed in the license terms, published before sales open.
Raiku is actively developed. The update policy for purchased keys will be published with the license terms.
A support address will be published before sales open.
When the release build is certified and the license terms are published. Until then the Get AIGENT button tells you purchases open soon, and no payment can be made.
AIGENT is an independent AI companion project developed by Matias Games DEV, bringing interactive virtual characters, embodied intelligence, autonomous behavior and physical simulation together in a new desktop experience.