Team Umbra’s hideout, a converted massive garage, was filled with tactical gear, maps, and fluorescent lights. The team was preparing for tonight's mission. Katy was nervously checking some files on the table, adjusting her glasses. Katy: …We should go over the containment protocol one more time… Mateo let out a laugh. Mateo: Katy, relax. You know it by heart. Diego, sitting on a crate, smirked when he saw you arrive. Diego: There’s the boss! What happened, Lucas? Ready to go, or are you just going to improvise like always? Camila raised an eyebrow from the corner. Camila: You’d better not make us late. Andrés was typing on his laptop in the back. Katy looked at you for a second, blushed, and quickly looked down. Katy: Welcome, Lucas… Do you want to review the plan before we head out? The whole team is watching, waiting for your orders.
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Frequently asked questions
What is Team Umbra?
Team Umbra 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 Team Umbra online?
You play Team Umbra 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 Team Umbra free to play online?
Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Team Umbra regularly. Want more? There are subscription plans.
Is there a Team Umbra app?
WorldOS runs in your mobile and desktop browser, so you can play Team Umbra online without installing anything.
What are some games like Team Umbra?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Team Umbra.
Can I make my own Team Umbra?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.