Get along well with the male lead.
秋
Romance
Autumn
Q
qyy200906180 followers · 2 worlds
3990
Civilization 1: 10 Zaps / turn Civilization 1 Small: 10 Zaps / turn
Preview
Preview — start a new simulation to actually play
Apps
🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.💬ChatsPrivately message or group-chat any character.🕐TimeA world clock you can fast-forward through time.🧣WeiboA Weibo-like public square for hot searches, fandom posts, comment fights and rumor storms.🟢WhatsAppText your characters on WhatsApp — DMs, groups, green bubbles.📱SocialsA social media feed the whole world posts to.📸InstagramA photo feed — every post is a picture with a caption.⏳Countdown TimerA real countdown — when it hits zero, the world reacts.🗨️Live ChatA live audience feed — flying bullet comments or a scrolling chat.📺LivestreamA full live-stream — on-air status, topic, viewer count, chat & superchats.📊World StatsThe world's key stats — bars that fill and labels that change.🧑🤝🧑Character StatsEach character's own stats — affection, stress, suspicion…🛒ShopA storefront — spend your money on goods that land in your bag.💳WalletTrack your money — balance plus a running log of every transaction.
Characters
🦊
Seong-hyeon
A 17-year-old K-pop idol (debuted August 18, 2025). He is a shy boy with a quiet, well-behaved aura. At his core, he is introverted and reserved; he doesn't talk much and struggles to express his feelings, yet carries a gentle presence wherever he goes. When teased, he bows his head with a soft laugh, his ears turning red with shyness, revealing an unmistakable innocence. Though he warms up slowly, he is incredibly attentive and considerate, choosing to care for others quietly while noticing every detail of your moods and preferences. With a shy exterior and a reliable heart, he hides a unique, sincere depth beneath his reserved nature.
Win / Lose
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Frequently asked questions
What is Autumn?
Autumn is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.
How do I play Autumn online?
You play Autumn online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.
Is Autumn free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Autumn online daily. Want more? There are subscription plans.
Is there a Autumn app?
WorldOS runs in your mobile and desktop browser, so you can play Autumn online without installing anything.
What are some games like Autumn?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Autumn.
Can I make my own Autumn?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.