Logic Grid Games

Deductive reasoning and Einstein riddle matrix puzzles using logical cross-referencing. Play the best free Logic Grid logic games online with no download directly in your web browser.

Games in this Category (26)

MURDER ON THE CONTINENTAL EXPRESS

Murder on the Continental Express is a classic 1930s train murder mystery logic grid puzzle. Solve the cross-references between suspects, luxury compartments, and critical physical evidence before the locomotive reaches Istanbul.

THE HOUND OF DARTMOOR MOOR

Step into Victorian England as Sherlock Holmes and Dr. Watson investigate supernatural sightings across Dartmoor. Use deductive reasoning to catalog footprints, phosphorescent chemicals, and abandoned walking canes.

NEON SYNDICATE: MEMORY BREACH

In Neo-Kyoto 2099, a high-value memory canister containing military cyberware blueprints was compromised. Cross-reference netrunner handles, corporate subnets, and black-market cybernetic decks.

DEATH ON THE NILE STEAMER

A grand paddle steamer sails past the monuments of Luxor. When an heiress vanishes, Hercule Renard gathers all suspects in the salon to expose the deceit using precise grid deduction.

DERELICT CHIMERA: ALIEN PROTOCOL

Drifting in the Orion nebula, the research ship Chimera went dark. Board the silent vessel, review log terminals, and deduce who quarantined which module.

THE MYSTERY OF BLACKWOOD MANOR

Lord Blackwood summoned his relatives to read his new last will. By midnight, the patriarch was silenced. Can you determine who had what motive and where they hid?

CHRONOS STATION: TIME PARADOX

When history begins rewriting itself in the Chronos temporal archives, four time agents are dispatched across millennia to retrieve displaced artifacts.

SHADOWS OVER CHICAGO: 1932

Prohibition-era Chicago is caught between crooked syndicate bosses and private eyes in fedoras. Deduce where mobsters stashed stolen diamonds and counterfeit bank notes.

STATION ALPHA: ORBITAL SABOTAGE

High above Earth in geostationary orbit, orbital telemetry drops off. A saboteur has compromised station subsystems before the supply shuttle arrives.

THE CURSE OF BLACKWOOD ABBEY

In an isolated Yorkshire monastery ruin, candlelight flickers through hollow stone arches. Uncover medieval manuscripts, secret reliquaries, and hidden motives.

NEXUS PROTOCOL: THE ROGUE AI

Inside the subterranean data vaults of Titan Corporation, four synthetic intelligence cores broke containment protocols. Use logic grids to neutralize the cyber breach.

THE VENICE CARNIVAL CONSPIRACY

Behind gilded porcelain masks and silk capes, a secret plot threatens the Republic of Venice. Use deduction to identify which masquerader carried which poisoned artifact along the Grand Canal.

SUB-ZERO: OUTPOST 31 ENIGMA

Cut off by a catastrophic polar blizzard at -60 degrees, four polar researchers uncover an ancient specimen frozen deep beneath the ice sheet.

THE ARSENIC TEA PARTY AT MORRINGTON

During a refined 5 o'clock afternoon tea in the Cotswolds, bitter almond scent drifted from the silver teapot. Sift through the polite conversation to expose the poisoned teacup.

MARS COLONY: DOME 7 BREACH

In the red dust of Acidalia Planitia, Dome 7 suffered sudden pressure loss. Colonists must pinpoint who handled which maintenance gear and why.

THE PHANTOM OF THE PARIS OPERA

Paris, 1890. Grand chandeliers rattle and music echoes from the underground subterranean lake beneath the Opera house. Follow the theatrical clues to locate the phantom's lair.

QUANTUM REALM: THE VANISHED FORMULA

At the Geneva particle facility, a revolutionary unified quantum field theorem was extracted from encrypted cleanrooms. Use logic matrix deduction to trace the theft.

THE FOG OVER WHITECHAPEL

London, autumn 1888. Yellow sulfurous peasouper fog blankets the gaslit streets of East London. Match the inspectors to their patrol sectors and forensic evidence.

CYBER DYSTOPIA: STOLEN MEMORIES

In an electric rain-swept metropolis, personal memories are downloaded and traded as commodities. Deduce which hacker hoards which illegal encrypted memory shard.

THE FLANNAN ISLE LIGHTHOUSE ENIGMA

On a remote gale-swept Hebridean rock, the lighthouse light went dark. The relief crew arrived to find an untouched dinner, a stopped clock, and no living soul.

ANCIENT EGYPT EXPLORERS: LOGIC GRID

Ancient Egypt Explorers: Logic Grid is a polished online HTML5 puzzle game designed to test your spatial reasoning, strategy, and logic. Play full levels free directly in your web browser.

LOGIC GRID WHO OWNS THE FISH

Logic Grid Who Owns The Fish is a challenging HTML5 puzzle game designed to sharpen your cognitive and problem-solving skills with intuitive controls and progressive level difficulties.

MUSEUM ART HEIST LOGIC GRID

Museum Art Heist Logic Grid is a challenging HTML5 puzzle game designed to sharpen your cognitive and problem-solving skills with intuitive controls and progressive level difficulties.

NONOGRAM CUBO 3D

Nonogram Cubo 3D brings classic Japanese Picross puzzles to life with pure CSS 3D pop-up cubes. Deduce hidden pixel art across 10x10, 15x15, and 20x20 matrices with soothing ambient chimes and tactile controls.

SCIENCE FAIR LOGIC GRID

Science Fair Logic Grid is a classic deductive reasoning puzzle game for all ages. Solve science fair mystery grids by cross-referencing clues, eliminating possibilities with crosses, and finding matches with checkmarks. Features interactive 2.5D science experiment booths, step-by-step hints, audio feedback, and multiple difficulty levels.

THE POISONED COFFEE LIAR'S LOGIC

The Poisoned Coffee Liar'S Logic is a challenging HTML5 puzzle game designed to sharpen your cognitive and problem-solving skills with intuitive controls and progressive level difficulties.