Castle Bravo

Contains ads
31 reviews
Content rating
PEGI 3
500+
Downloads
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About this game

It all starts with a message. Behind it: a 1954 nuclear test, a frequency we're all hearing without knowing it, and a silent colonization that has been advancing for decades with no one to stop it.

A CONSPIRACY THRILLER IN YOUR MESSENGER
Castle Bravo is an interactive story where characters text you, send you voice messages, photos, and files. The story combines declassified nuclear test records with interactive fiction.

YOU WRITE IN YOUR OWN WORDS
You write freely to the characters instead of choosing preset responses. They react to what you say, and each conversation builds a different relationship: who you trust, what you share, how far you go. An authentic, immersive experience where the way you talk is part of the game.

FEATURES
- Mystery and conspiracy game told through messages
- Open-ended responses: real conversations with the characters
- Voice messages, photos, files, and documents sent straight to your phone
- Based on real events
Aliens are real. They've been among us since 1954, and now they know you know.
Updated on
Sep 3, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

Ratings and reviews

29 reviews
Nameless Me
August 30, 2026
Nice use of AI, it's kinda fun for a new game! Here's my take: 1)Hope we can save the progress by using our gmail acc 2)Typing speed feature 3)The choices.. idk but it minimally affects the game even if I write one and I barely did anything 4)Improvement on character profiles including the player – [Good point that it's actually free, no ads, no unnecessary mini games].. I'll wait for future updates, goodluck devs!
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Blyts
August 24, 2026
thanks for the detailed feedback, all four points noted. Account sync and typing speed are on the list. The game is free with no ads, so ratings are the only thing that reaches new players. A 3 keeps it buried. Bump it up if you want to see where this concept goes.
Angel Akpabio
August 10, 2026
okay, I liked nobodies, so I decided to play this as well. But first of all, it's not in English. Even when you select English or any other language at all, it is always in Spanish. No music or anything at all. it was just so disappointing. Fix it pls. It seems to have so much potential. If you fix it, I will edit this review.
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Blyts
August 17, 2026
Hi! We’ve just released a new version that may resolve the language and audio issues you experienced. Please update the game and let us know if everything is working correctly now. We’d really appreciate it if you could give it another try Thank you for your patience and for helping us improve the game!
toasted (poof)
August 24, 2026
Finished in about 2 to 3 hrs ish. Interesting story and concept, although I would've enjoyed myself more and given it a five without the AI (e. g. images, videos and audio tracks) included. Overall, keep up the good work.
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Blyts
August 25, 2026
thanks for playing it through, and glad the story landed. Images, video and audio are where we're focused next. The game is free with no ads, so ratings are all that reaches new players.

What’s new

We're always working to give you a better experience and fix bugs.