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Free Browser Games

66 free games that run right in your browser — no install, no login, no ads between levels. Physics puzzles you solve with one finger, quick arcade action, and full-rules board classics like chess, shogi, go and riichi mahjong. Everything works offline-friendly on mobile and desktop.

Online16

Sinking IsleOnline

Co-op: sink-island survival — invite a friend or solo

Defuse LineOnline

Co-op: one defuses, one reads the manual

Co-op trick-taking — clear the mission together

Co-op: you can't see your own hand

Cipher DuetOnline

Co-op word game — clues past the assassin

Shogi AcrossOnline

Shogi over invite-only P2P — play or spectate

Chess AcrossOnline

Full-rules chess over invite-only P2P — play or spectate

Reversi AcrossOnline

Reversi over invite-only P2P — play or spectate

Go AcrossOnline

Go (9/13/19) over invite-only P2P — play or spectate

Mahjong AcrossOnline

4-player Riichi mahjong over P2P — hands stay private

Gomoku AcrossOnline

Five-in-a-row over invite-only P2P — play or spectate

Hex AcrossOnline

Hex (connect your sides) over P2P — play or spectate

Infection AcrossOnline

Ataxx-style territory over P2P — play or spectate

PlumblineOnline

Co-op: build a 3D solid from two shadows

Co-op: one impossible solid seen from two angles

Co-op maze: first-person walker + map reader

Realtime8

Flux GateRealtime

Real-time co-op: route the flood into two drains together

Asymmetric co-op: flash-guide a fog-bound ship to port

LatticeRealtime

Co-op timing: tap the resonance windows together

Co-op belts: mesh the seam and route every box

WatchtowerRealtime

Asymmetric tower defense: signal and intercept together

ConduitRealtime

Real-time co-op maze: navigator guides, walker runs

SpindleRealtime

Real-time co-op: rotate the drum, flush the pulses

KeystoneRealtime

Real-time co-op build: balance the tower together

Puzzle27

Roll a wireframe solid until it matches the target shadow

ISOHEDRONPuzzle

Cross an impossible structure — connections are what you see

Place planets and steer a ship with gravity wells

One tap sets off the maximum chain reaction

Crack the daily 4-colour code in 6 guesses

ColorDropPuzzle

Drop blocks and match 3+ colors to clear

Milk PuzzlePuzzle

An all-white jigsaw — only the shapes guide you

Switch ice, water and steam to guide the core

Bend light with mirrors and hit every target

Guide a particle with invisible magnetic fields

Place fans and float a paper plane to the goal

Redirect water with walls into the golden goal

Mesh gears to transmit rotation to the output

Wire logic gates and learn AND, OR, NOT, XOR

Bridge the numbered islands — every board has exactly one solution. Daily + free mode

Strategy OrderPuzzle

Deterministic tactics - every enemy move is visible; reroute attacks with pushes and height. Daily + campaign

Fill in cells using number clues to reveal a picture — a daily nonogram (picture logic) puzzle with one new puzzle a day.

Connect fences guided by number clues to form a single loop — a daily loop-drawing logic puzzle (Slitherlink-style).

Cross SumPuzzle

Black-cell numbers are the sum of the following white cells — fill in 1-9 without repeats in this addition crossword. Daily puzzle, 3 a day.

Calc CagePuzzle

Use the target number and operator shown in each bold-outlined cage to fill every row and column with 1-N — a daily arithmetic logic puzzle (KenKen-style).

Iro-TsunagiPuzzle

Connect matching-colored pairs with lines so every cell is filled — a daily line-connecting logic puzzle (Numberlink-style).

Combine four numbers with +, −, ×, ÷ to make 10 — a daily "Make 10" arithmetic puzzle with 3 new puzzles each day.

Kanji CraftPuzzle

Tap and combine kanji components to build characters (e.g. 日+月=明) — a daily kanji-building puzzle.

Ken-TsunagiPuzzle

Connect neighboring Japanese prefectures one by one to link two prefectures using the fewest steps — a daily route puzzle.

Unit ChainPuzzle

Chain unit-conversion cards so units cancel out, dimensional-analysis style — a daily unit-conversion puzzle.

Rekishi TimelinePuzzle

Arrange Japanese history events (with hidden years) on a timeline by reasoning about their order — a daily history sequencing puzzle.

Root CraftPuzzle

Combine root and affix tiles to build English words (e.g. retro+spect=retrospect) — a daily etymology puzzle for GRE/SAT vocabulary.

Action6

Blue BirdAction

Tap to fly through the pipes — brutal from pipe 1!

Move the light — only shadows are solid ground

Drag a swarm of light, auto-melt waves, beat the boss

Cooperate with replays of your past self

One-button swing runner — outrun the void, go far

Tap the instant the orbiting marker hits the gate

Board & Card9

Classic Klondike with undo and auto-complete

Riichi MahjongBoard

Japanese riichi mahjong against 3 AI opponents

Classic 8×8 Reversi with hints, vs CPU

Full-rules chess vs CPU or a friend

Japanese chess with drops and promotion

Go on 9×9, 13×13 or 19×19 — vs CPU or a friend

Five in a row on a 15×15 board, vs CPU

Connect your two sides first — no draws exist

Clone, jump and infect across an 8×8 board

調整中0

プレイして大きな調整が必要だと感じたもの（作者の調整メモ）。