The whole promise of an AI game generator fits in one sentence: you describe a game, and a playable one arrives. On DreamCore that means one input box, one line of text, and a few minutes of waiting. This page is about what to put in that box and what actually happens after you press the button.
One line in, a game out
The box at the top of the home screen asks what you're making. "A cat dodging sushi falling from the sky" is roughly the right amount to write. You can write a paragraph instead, but you don't have to, and a short line is often better because it leaves room for the generator to make choices you wouldn't have thought of.
Under the box are three buttons. Image attaches a photo, and whoever is in it becomes the hero. 2D and 3D push it one way or the other; press neither and it picks whichever suits what you described. Then Make.
If your mind goes blank in front of an empty box — which happens to nearly everyone — Surprise me drops an idea straight into it. It only fills the box; nothing starts until you press Make, so you can edit the idea into something of yours first. There is also a guided route where you answer five short screens instead of writing anything, and a route that starts from a photo and swaps the hero of an existing game for the person in it.
What happens in the minutes you wait
You get moved to the making screen, and the generator starts writing an actual game: the movement, the rules, the art, the thing that counts as winning, the text on the buttons. That text comes out in the language you wrote your idea in.
It takes a few minutes rather than seconds. Games with lots of images, or complicated ones, take longer, and when a lot of people are generating at once yours can sit in a queue before it starts. Closing the screen doesn't cancel anything — go look at something else and a notification will bring you back. You can have one game generating at a time, so the next one starts after this one lands.
What comes back is a message describing what got built and a Play button. Press it and the game runs right there. Play it properly before you touch anything; the fastest way to a good second version is knowing exactly which thirty seconds of the first one annoyed you.
Sometimes a generation fails. Sending the same request again usually works. If it fails twice, cut it down — one clear idea lands where "3D open world with online multiplayer and a hundred levels" does not.
What to type, and what to leave out
Lead with how it plays. Not "a cool ninja game" but "tap to jump, dodge ten pits, reach the flag". Movement and a win condition are the two things that decide whether what comes back feels like a game or like a scene.
Then, if you want, say what it should look and sound like in ordinary words: pixel art, a city at night, pastel colours, a little effect when you land. You never have to draw anything for this to work.
Leave out the specification. Long lists of features tend to come back with all of them half-done. Ask for the core thing, play it, then ask for the next thing — one at a time, in the same chat box. Every message you send after the first one changes the game you already have rather than starting a new one, and if you liked an earlier version better, version history will restore it.
Games that started as one prompt
太川陽介の1分ダッシュ！バス発車まで急げ！
by テレ東
89,906 plays
岸田奈美の桃配りゲーム
by 岸田奈美
22,762 plays
『お金の不安という幻想』お金マインド16タイプ診断
by suemaru
13,381 plays
Advanced Othello Game
by たつはら
12,134 plays
エブリン、宮崎の侵略阻止ゲーム
by EVELYN MAWULI
9,414 plays
Burger Rush
by BIG-lab.
9,059 plays
Burger Running
by BIG-lab.
7,394 plays
GORODIUS GORO’s Ambition
by MOKO
7,370 plays
Frequently asked questions
Can AI really generate a whole playable game from one prompt?
Yes — a short, complete one. You get movement, rules, art and a win condition in a game that runs in a browser. Long, sprawling requests are where it struggles, not short clear ones.
What should I actually write in the prompt?
Say how you move and how you win first, then the mood. "Tap to jump, dodge ten pits, pixel art at night" gives the generator far more to work with than "make something fun".
Can I use a photo instead of typing a description?
You can. Attach one with the Image button and the person, pet, plushie or drawing in it becomes the hero. Sending a photo with no words at all also works.
Why does it take a few minutes instead of being instant?
Because a real game is being written from scratch, not assembled from a preset. At busy times your request may also queue before it starts. You can close the screen; it keeps going.
Can I generate several games at once?
No — one at a time. If you try to start another while one is building, you'll be asked to wait, and the next one begins as soon as the current one finishes.
What if what comes back isn't what I pictured?
Say what's off in the same box rather than resending the whole idea. "The enemies are too fast" changes that and leaves the rest alone; version history can bring back an earlier one.