
PLAYER 2 HAS JOINED
An AI buddy that plays your games with you
Meet Playfellow: a game buddy for your Windows PC that watches the screen, thinks out loud, talks with you and presses only the keys you allow. Hands tired? Say what you want, in English or Arabic.
Windows 10 and 11 · English and Arabic · adults (18+) · single-player games

OUR FIRST GAME BUDDY
Playfellow: a teammate, not a cheat
Playfellow sits beside you like a friend on the couch. It plays your game with you, explains what it's trying, and gets better as it learns your game.
- It watchesIt looks at the game window, nothing else, just like you look at the screen.
- It talksIt thinks out loud and chats, so you always know what it's planning.
- It playsIt presses keys on a list you control, and stops the moment you press F12.

HOW IT PLAYS
Look, think, check, act. Again and again.
Every few seconds your buddy runs the same little loop. It's the same idea you'll take apart in the course.
- LookIt takes a picture of your game window.
- ThinkIt decides what to try next, and says why.
- CheckOnly keys on the game's controls card are allowed.
- ActIt presses the keys, only while the game is in front.
The Lightfolk
Your buddy has a face. Fello is the first of the crew who play, plan and keep watch with you.
Dalil
Rami
SAFE BY DESIGN
You stay in charge
Press F12 and everything stops
- Only inside the gameIt presses keys only while the game window is in front.
- Offline, single-player gamesMade for games you play on your own, never against people online.
- Your own AI accountCloud AI runs on your own account. Your key never leaves your PC.
- Stays on your PCYour buddy's memory, notes and recordings stay in a folder on your PC.

THE 15-DAY COURSE
Play first, then look inside
In about 2 hours a day, you build and train your buddy, and find out how an AI sees, decides and learns. No coding needed.
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DAY 1Meet your AI game buddyAn AI can look at a screen and press keys, just like you.
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DAY 2Its eyesIt only sees pixels: the same picture you see, nothing secret from inside the game.
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DAY 3Its handsIt plays with the keyboard and mouse like a person, but only with the moves you allow.
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DAY 4Its brainYou give it a goal and a personality with words, and the same brain then plays very differently.
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DAY 5Thinking out loudExplaining a plan before acting leads to better choices, and lets you spot silly ideas.
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DAY 6Its memoryRemembering the last few moments, and what it learned before, helps it play better.
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DAY 7Why is this so hard?Knowing what something is is not the same as knowing how to do it.
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DAY 8Team captain + playerA slow, careful planner can guide a fast player, one small step at a time.
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DAY 9The AI coachAn AI can invent challenges, score attempts out of 100, and use the scores to get better.
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DAY 10The CrewEach game gets its own buddy, and only tricks that work in more than one game are shared with everyone.
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DAY 11Teach by showingYou can teach your buddy by playing yourself while it watches, then letting it study the recording.
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DAY 12Fast games and reflexesA fast part reacts every split second while a slow part thinks in the background, so the buddy keeps moving while it plans.
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DAY 13The Mind, a team inside one brainOne AI answer can play seven little helpers at once, each with one job, and you can watch what every helper is thinking.
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DAY 14Learning from the web, safelyThe buddy can look up game tips on a few trusted sites, but only with your yes, and it treats every tip as a guess until play proves it.
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DAY 15Final project, showcase and play fairA well-trained buddy can try a game it has never seen, and a good player uses AI safely, fairly and honestly.
MORE FROM RIVEL LABS
More is coming
Playfellow is the first product from Rivel Labs. Each of the next ones gets its own home on rivel.pro.
COMING SOONStudio
Make your own games, with the Lightfolk as your crew.
COMING SOONWorld
Our own games, built to be played with an AI buddy.
COMING SOONResearch
Our open research: the public code, the benchmarks and the papers.
Want to hear first? Email hello@rivel.pro.
Ready for player 2?
Get Playfellow for your Windows PC and play together. Curious how it works? The 15-day course takes you inside.