BUNKER PROTOCOL vs 脱出ゲーム 静かな書斎
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
BUNKER PROTOCOL
Explore a deserted military black site and solve intricate puzzles to escape. This 3D escape room experience requires observation and item combination to progress through chained challenges. A built-in hint system guides you without spoiling the fun.
- Immersive 3D environment exploration
- Chained, multi-stage puzzles
- Observation-based clue finding
- Collect and combine items
- Guided puzzle progression
- Built-in hint system
- Multi-language support
Read full descriptionHide full description
You wake up alone in an abandoned military black site. The command terminal is dark. The security door is sealed. Your only way out is to solve every puzzle left behind in this classified facility. BUNKER PROTOCOL: Black Site is the second entry in the hit escape game series BUNKER PROTOCOL — a fully 3D escape room experience designed for mobile. Explore every corner of a deserted covert facility, examine objects, collect items, and piece together the solution to escape. FEATURES - Immersive 3D Environment: Explore a richly detailed facility rendered in full 3D. Rotate your view, walk around freely, and examine objects up close. - Chained, Multi-Stage Puzzles: Power on the command console, crack a cipher case, dial in a wall safe combination, and reorder mysterious symbols. Solving one puzzle unlocks the next. - Observation Over Trivia: Every clue you need is hidden somewhere in the facility. No outside knowledge required — just look closely, think it through, and solve. - Collect and Combine: Pick up access cards and tools scattered through the facility, then combine them to unlock new solutions and hidden mechanisms. - Guided Puzzle Progression: Puzzles unlock in a carefully designed order. Restore power, bypass authentication, and crack the final cipher to earn your way out. - Built-in Hint System: Stuck on a puzzle? A subtle hint system nudges you in the right direction without spoiling the answer, keeping the joy of discovery intact. - Immersive, Uninterrupted Play: No ads ever appear while exploring or solving puzzles. The only ad is an optional rewarded video when you choose to view a hint — your immersion stays intact. - English, Japanese & Russian: Fully localized for all three languages. HOW TO PLAY Unlike typical "tap to move" escape games, this is a true 3D experience: drag to freely rotate your view, tap to approach and interact with objects. Examine everything, collect useful items, and solve the puzzles in order. Every solved puzzle brings you one step closer to escaping the facility. THE CHALLENGE This facility hides many secrets: a silent command terminal, a sealed security door, a wall safe demanding the right combination, lockers with no name on them. Can you connect every clue and find your way out? You don't need to have played "Reactor Core" first. Download now and take on the black site.
脱出ゲーム 静かな書斎
Explore a peaceful study and an astronomical observatory to uncover hidden mysteries. Inspect objects, collect items, and solve puzzles using clues to escape. The game offers a relaxed pace with automatic saving and optional hints.
- 3D escape game environment
- Inspect objects and collect items
- Solve puzzles with symbols and numbers
- Automatic progress saving
- Optional hints and answers
- Dual language support (Japanese/English)
Read full descriptionHide full description
A quiet room. A hidden mystery. Escape Game: Quiet Study is a 3D escape game set across two rooms: a peaceful study and an astronomical observatory. Inspect the furniture, collect useful items, and connect the clues to find your way out. LOOK CLOSER Tap the arrows to turn, then tap objects to inspect them up close. Examine keyholes, curious symbols, and small details. Optional object markers help you find places to explore. TWO ROOMS, MANY DISCOVERIES A traveler’s diary, a globe, a gramophone, and butterfly specimens await in the study. In the observatory, investigate star charts, a telescope, moon phases, and a balance. Solve puzzles using pictures, symbols, colors, numbers, and the items you find. TAKE YOUR TIME There is no time limit. Your progress saves automatically, so you can take a break and return later. Clear the first room to unlock the second room in chapter selection. HELP WHEN YOU NEED IT Hints and answers follow the puzzle you are currently solving. Answers include the steps and reasoning. Once unlocked, the same content can be read again without another ad. A QUIET ATMOSPHERE Enjoy background music and sound effects, with an option to switch them off. Japanese and English are supported, and you can change languages in the game. ABOUT ADS The game includes banner ads and interstitial ads when starting a selected chapter or moving from the first room to the second. Rewarded ads unlock new hints and answers. If an ad is unavailable, your selected hint or answer is shown for free. An internet connection is required to display ads. Observe. Connect. Discover.
Screenshots
Verdict
The clearest difference is monetization model: 脱出ゲーム 静かな書斎 at ad-supported against BUNKER PROTOCOL's free with in-app purchases. On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BUNKER PROTOCOL ships an update weekly, 脱出ゲーム 静かな書斎 every 9 days. The most recent releases landed on November 10, 2026 and October 26, 2026 respectively.
| Parameter | BUNKER PROTOCOL | 脱出ゲーム 静かな書斎 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Update frequency | Weekly — better | Every 9 days |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 114 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Sink Capital, Inc. | iida atsushi |
Customer experience
BUNKER PROTOCOL
脱出ゲーム 静かな書斎
In-app purchases
BUNKER PROTOCOL
No in-app purchases
脱出ゲーム 静かな書斎
No in-app purchases
Questions
Is BUNKER PROTOCOL free?
Is 脱出ゲーム 静かな書斎 free?
Do BUNKER PROTOCOL or 脱出ゲーム 静かな書斎 have ads?
Which is updated more often, BUNKER PROTOCOL or 脱出ゲーム 静かな書斎?
Other comparisons















