Decoder Terminal vs Mystery Grid

A secret cipher of four colored keys is hidden inside the system. You have seven attempts to crack it. DECODER is a code-breaking puzzle — a modern take on the classic Mastermind — wrapped in the aesthetic of a green-on-black decryption terminal. Lock in a guess, hit RUN, and the system reports back: • HIT — right color, right slot • NEAR — right color, wrong slot The hints never tell you WHICH slot is right. Read them, reason it out, and narrow the cipher down before your attempts run out. Crack it in four hits to breach the system. Burn all seven and the cipher stays sealed. NO LUCK. JUST LOGIC. Every cipher is solvable by pure deduction. There are no power-ups, no timers, no ads, no accounts — just you against the code. TWO CLEARANCE LEVELS • EASY · 6 colors — learn the ropes • ADVANCED · 8 colors — for hardened operators Colors can repeat, so don't assume the obvious. BUILT FOR THE CRAFT • A tactile CRT terminal interface — scanlines, glow, and a blinking cursor • Colorblind-friendly: every key carries a letter, never color alone • Honors Reduce Motion • Tracks your stats per clearance level: solve rate, current streak, and best run • Fully offline. No sign-up, no tracking, no nonsense. Read the hints. Breach the system.

A body in the manor. A grid of rooms. A cast of suspects. Mystery Grid is a murder mystery game where Sudoku-style deduction reveals the killer. A Murder Sudoku. Read the clues, reconstruct the crime scene, and place every suspect in the correct room. Each person occupies one row and one column. When every suspect is placed, the victim appears at the only intersection left unused—and the truth falls into place. SOLVE EVERY CASE WITH PURE LOGIC • Follow evidence about rooms, positions, distance, and direction • Mark impossible cells, test possibilities, and confirm each suspect • Solve fair logic grid puzzles with one reasoned solution • Use smart hints when an investigation has you stumped • Undo or clear your notes as your theory changes STEP INTO A HAND-DRAWN MYSTERY • Explore top-down mansions filled with real rooms and furniture • Meet illustrated suspects through case-file dossiers • Close Victorian whodunits with a paper-and-ink detective style • Learn naturally in Case Zero before the challenge increases PLAY YOUR WAY • Enjoy short, satisfying detective puzzles at your own pace • Play offline without a timer • Choose a free experience with ads or remove ads with one purchase • Available in English, Spanish, and French No guessing. No gore. Just clues, deduction, and a crime waiting to be reconstructed. Place the suspects. Find the victim. Reveal the killer. Download Mystery Grid and open your first case today.