DC34 CTF vs Kamekoro

DC34 CTF is a capture-the-flag game built for DEF CON 34. Fourteen channels are dark. Your job is to light them up. Download before the con. The app locks until the convention opens. When the doors open at LVCC West Hall in Las Vegas on August 7, it unlocks and the game begins. FOURTEEN CHANNELS. ONE FINAL TARGET. Every channel is a different kind of puzzle. Some are cryptographic. Some are physical. Some require hardware your phone didn't know it would be using. No hints. No walkthrough. Figure it out. The challenges span XOR ciphers, steganography, DTMF tone analysis, radio direction finding, Bluetooth beacon hunting, geolocation, reverse image search, physical navigation, NFC, speech recognition, and more. Your phone's full sensor suite is in play — camera, microphone, GPS, accelerometer, compass, Bluetooth, NFC. PRIZES The first three players to complete all fourteen channels and claim the final flag receive physical prizes: gold, silver, and copper coins. Finishers four through thirteen get pins. Your rank is permanent — logged to the live leaderboard the moment you scan the hand. THE LEADERBOARD A live in-app finishers board tracks every player who completes the game, ranked by completion time. Watch it fill up in real time. THERE IS MORE The app has secrets that have nothing to do with the flags. Some people will find them. Most won't. REQUIREMENTS iOS 17 or later. Game Center must be enabled — the app authenticates silently at launch. Several challenges require network access, Bluetooth, NFC, location services, camera, and microphone. Grant permissions as the game asks for them or miss the challenges that need them. The app is locked until August 7, 2026 at 9:00 AM PT. Show up at DEF CON 34, LVCC West Hall, Las Vegas. You can play anywhere, but final flag unlocking prizes is only available in-person.

Kamekoro — feed, raise, and send them off. A physics drop puzzle with adorable reptiles. Drop food and critters into the tank and feed each one its favorite meal. When two well-fed critters of the same kind touch, a little baby is born. Fully grown ones eventually leave the tank for a big bonus! Chain meals, births, and farewells into combos and chase the high score. ▼ Features • Simple rules — just feed the right critter. Fun for kids and grown-ups alike • Combo scoring — keep the chain of meals, births, and farewells going for big points • Hold — set one piece aside and play it at just the right moment • Collection — every farewell is recorded in your critter Collection • Online leaderboard — no account needed, compete with just a nickname • Share your score card — show off your best with your avatar • Skins — dress the tank as an Ocean or Forest world (one-time purchase) • Japanese (with a kana-only kids mode) and English • No ads Build carefully or chase combos — grow your own little tank ecosystem.