Eleven seconds of numbers, broadcast on a police channel that has been dead for nine years. Then Jiwon — hacker, asset, friend — was gone.
SHADOW PROTOCOL: SIGNAL LOST is a neo-noir spy visual novel and the interactive sequel to the SHADOW PROTOCOL series. You are Detective Kang. Retrace Jiwon's last 72 hours across a rain-drowned Seoul, and solve the case the way she built it: as a chain of puzzles only you can finish.
SOLVE REAL PUZZLES
• THE DEAD CHANNEL — decode her final broadcast, fragment by fragment
• THE TIMELINE — rebuild her last 72 hours from oblique traces of time
• THE KEEPER'S ALIBI — interrogate a safehouse keeper and break his story with the right evidence, presented at the right moment
• TWO PARKS — your partner appears on two feeds at once. Prove which one is real
• THE GRID CIPHER — decode a rolling blackout district by district, against the clock
• THE BROKER'S BOARD — the villain's own game, played by his rules… until you change them
Every wrong move raises your EXPOSURE. Solve cleanly to earn key fragments — and only a clean decode can unmask the Broker in the finale. Get sloppy, and you'll have to choose between the truth and the people it would burn.
TRUST IS A METER
Interrogate with pressure, empathy, or bluff. Park's loyalty shifts with every choice — earn it, and he'll feed you hints no one else can. Lose it, and face the Broker's board alone.
REAL VIDEO SCENES
Cinematic sequences built from actual generated video — Seoul from above as the signal sweeps the grid, a rain rooftop where a phone lights up at the worst possible moment.
FEATURES
• A complete ~43,000-word branching thriller in 7 chapters
• 6 story puzzles with hints, retries, and a consequences system
• Timed decisions under pressure
• 3 endings: TRUTH, LOYALTY, and the Broker's ending
• Evidence board, chapter select, gallery, backlog, auto-play, 3 save slots
• An original noir score: drones, pulse, and Jiwon's piano theme
• No ads, no in-app purchases — the whole case, complete
The first game is over. This one, you play.
SHADOW PROTOCOL: SIGNAL LOST is a neo-noir spy visual novel and the interactive sequel to the SHADOW PROTOCOL series. You are Detective Kang. Retrace Jiwon's last 72 hours across a rain-drowned Seoul, and solve the case the way she built it: as a chain of puzzles only you can finish.
SOLVE REAL PUZZLES
• THE DEAD CHANNEL — decode her final broadcast, fragment by fragment
• THE TIMELINE — rebuild her last 72 hours from oblique traces of time
• THE KEEPER'S ALIBI — interrogate a safehouse keeper and break his story with the right evidence, presented at the right moment
• TWO PARKS — your partner appears on two feeds at once. Prove which one is real
• THE GRID CIPHER — decode a rolling blackout district by district, against the clock
• THE BROKER'S BOARD — the villain's own game, played by his rules… until you change them
Every wrong move raises your EXPOSURE. Solve cleanly to earn key fragments — and only a clean decode can unmask the Broker in the finale. Get sloppy, and you'll have to choose between the truth and the people it would burn.
TRUST IS A METER
Interrogate with pressure, empathy, or bluff. Park's loyalty shifts with every choice — earn it, and he'll feed you hints no one else can. Lose it, and face the Broker's board alone.
REAL VIDEO SCENES
Cinematic sequences built from actual generated video — Seoul from above as the signal sweeps the grid, a rain rooftop where a phone lights up at the worst possible moment.
FEATURES
• A complete ~43,000-word branching thriller in 7 chapters
• 6 story puzzles with hints, retries, and a consequences system
• Timed decisions under pressure
• 3 endings: TRUTH, LOYALTY, and the Broker's ending
• Evidence board, chapter select, gallery, backlog, auto-play, 3 save slots
• An original noir score: drones, pulse, and Jiwon's piano theme
• No ads, no in-app purchases — the whole case, complete
The first game is over. This one, you play.
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