Brain Test: The Ultimate Puzzle Adventure
Brain Test
Developer: Unico Studio
Publisher: Unico Studio
Release Date: January 2020
Genre: Puzzle, Brain Teaser
Platforms: iOS, Android, Web
Rating: 4.7/5 (2.8M+ reviews)
Brain Test is a wildly popular mobile puzzle game that challenges conventional thinking with its clever, trick‑based questions. Developed by Unico Studio, the game has amassed over 500 million downloads worldwide, becoming a cultural phenomenon in the casual gaming space. Unlike standard puzzle games, Brain Test requires players to "think outside the box," often using unexpected interactions, wordplay, and visual illusions to progress.
The game's core appeal lies in its deceptively simple presentation coupled with genuinely challenging brain teasers. Each level presents a unique problem that can range from mathematical puzzles to situational riddles, demanding creativity and lateral thinking. The Brain Test series has since expanded to include sequels like Brain Test 2: Tricky Stories and Brain Test 3, each introducing new characters and narrative elements while retaining the signature puzzle style.
Game Overview & Background
Launched in early 2020, Brain Test quickly rose to the top of app store charts in over 150 countries. The game's premise is straightforward: solve each puzzle to advance to the next level. However, the solutions are anything but obvious. Players might need to shake their device, tap in a specific sequence, or interpret images metaphorically.
The game's art style is clean and cartoonish, with bright colors and expressive characters that make it accessible to all age groups. Audio cues and humorous sound effects add to the playful atmosphere. With no time limits or lives system, players can ponder puzzles at their own pace, reducing frustration and encouraging experimentation.
Monetization is primarily through optional video ads for hints and a small fee to remove ads entirely. The game also offers in‑app purchases for Brain Test coins, which can be used to unlock hints or skip particularly stubborn levels. This fair model has contributed to its positive reception.
Gameplay Mechanics & Core Features
Basic Mechanics
Each level presents a scenario or question. The player must interact with the screen—tapping, dragging, tilting, or even using multi‑touch gestures—to find the solution. Success requires careful observation and often a willingness to break typical gaming conventions.
Level Structure
The game is divided into hundreds of levels, each with a unique puzzle. Levels are grouped into thematic chapters, though the difficulty can spike unexpectedly. Some notable levels that players frequently search for include:
- Brain Test Level 18 – The "sheep counting" puzzle that tricks many newcomers.
- Brain Test Level 97 – A color‑mixing challenge that tests perception.
- Brain Test Level 98 Baby – A puzzle involving a crying baby and unexpected soothing methods.
- Brain Test Game Level 62 – A mathematics‑based riddle with a hidden twist.
- Brain Test Level 168 Answer Key & Brain Test Level 168 Solution – Two of the most searched‑for solutions in the game.
Hint System
If stuck, players can watch a short video advertisement to receive a hint. Hints range from subtle clues to direct instructions. Alternatively, players can spend Brain Test coins (earned through gameplay or purchased) to reveal the answer immediately.
Popular Level Solutions & Walkthroughs
Many Brain Test puzzles have become infamous for stumping players. Below are concise solutions for some of the most frequently searched levels.
Brain Test Level 18 Solution
Problem: "How many sheep are there?" shows a field with sheep and a number "6" on the screen.
Solution: Tap the number "6" itself. The answer isn't counting sheep; it's literally the number displayed. This teaches players to question everything on screen.
Brain Test 3 Level 163
This later level from Brain Test 3 involves a complex arrangement of shapes and numbers. The key is to recognize a pattern: multiply the number of sides of each shape by the number shown, then add the results. The full walkthrough can be found on our dedicated page: Brain Test 3 Level 163.
Advanced Puzzle Strategies
For levels that involve physics, remember that tilting your device can move objects. For text‑based puzzles, pay attention to double meanings and homophones. When all else fails, try interacting with every element, including the question text itself.
Download & Installation Guide
Brain Test is available on multiple platforms. Below are the official download links and steps.
Android (APK)
Visit the Google Play Store and search "Brain Test: Tricky Puzzles" or use this direct link: Brain Test Game Download. The app is free and requires Android 5.0 or later. File size is approximately 85 MB.
iOS (App Store)
Search "Brain Test" on the App Store. The game is compatible with iPhone, iPad, and iPod touch running iOS 12.0 or later. It also supports Apple Silicon Macs.
Web Browser (Free Online)
You can play a selection of levels directly in your browser on sites like Poki. The web version, Brain Test Games Free Online, is perfect for quick sessions without installation.
Safety & Verification
Always download from official stores (Play Store, App Store) or reputable portals to avoid malware. The official developer is "Unico Studio." Beware of clones with similar names.
Expert Tips, Tricks & Strategies
Pro Tip: The most obvious answer is often wrong. If a solution seems too straightforward, you're probably missing the trick.
General Strategies
- Think Laterally: The game's tagline is "Think outside the box." Literal interpretations rarely work.
- Observe Everything: Tap every element, including text, borders, and even the pause button.
- Use Device Features: Some puzzles require tilting, rotating, or covering the light sensor.
- Listen Carefully: Audio cues can provide subtle hints.
Coin & Hint Management
Coins are precious. Use them only when completely stuck. Watch ads for free hints first. Complete daily bonus puzzles to earn extra coins without spending real money.
Advanced Techniques
For puzzles with numbers, consider Roman numerals, binary, or simple arithmetic. For word puzzles, look for anagrams, palindromes, or puns. When multiple objects appear, try combining them via dragging.
Update Log & Version History
Latest Version 4.2.5 – Released: 2026‑04‑15
- Added 50 new levels (total now over 800).
- Optimized performance for Android 15 and iOS 20.
- Fixed bug where hints sometimes wouldn't load.
- Reduced APK size by 15% for faster downloads.
- New seasonal event with exclusive puzzles.
Version Comparison (2025 vs 2026)
The 2026 update focuses on quality‑of‑life improvements, while the 2025 major update introduced a new chapter system and cloud save functionality. Both updates significantly enhanced the Brain Test experience.
Developer Insights & Behind the Scenes
In an exclusive interview, Unico Studio's lead designer revealed that the idea for Brain Test came from observing people's reactions to classic riddles. The team wanted to create a digital experience that evoked the same "Aha!" moment.
"We spend weeks designing a single level," the designer said. "Each puzzle must be tricky but fair. The moment a player solves it, they should feel clever, not cheated." The team uses extensive playtesting to calibrate difficulty.
Future plans include expanding the Brain Test universe with more narrative‑driven content like Brain Test 2: Tricky Stories, and exploring multiplayer puzzle modes.
Frequently Asked Questions (FAQ)
Player Comments & Reviews
Love the new update. The puzzles are fresh and challenging. Would like more hints per day though.
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About the Editor
Alex Morgan – Senior Game Analyst & Puzzle Enthusiast with over 8 years of experience in mobile gaming content creation. Alex specializes in deconstructing game mechanics and providing actionable insights to players. This article was last updated on May 15, 2026.
This game is addictive! Level 168 had me stuck for days. Finally found the solution on your site. Thanks!