PHASE MASON

One seal. Two faces. Every fold changes both.

PHASE MASON is a short bilateral spatial puzzle played across two linked 4 × 4 tile faces. Each revealed work card selects a row or column. Choose a fold distance of one, two, or three tiles, preview the highlighted movement on both faces, then confirm the fold. An optional quick-hold control lets experienced players commit by hold duration.

Tiles that cross the central fold arrive on the opposite face with their path connectors reversed along the fold axis. Read both faces together, route the entrance through the front keystone, activate a brass hinge, reach the back keystone, and carry the signal to the seal gate. A connected crack will ruin the restoration, so the shortest-looking move is not always the safest one.

HOW TO PLAY

1. Read the current row or column work card.

2. Preview a fold distance of 1, 2, or 3.

3. Check the highlighted path on both faces.

4. Commit the fold and watch crossing tiles reverse.

5. Connect the entrance, both keystones, an active hinge, and the seal gate before the move limit runs out.

FEATURES

• Two linked 4 × 4 tile faces with a working central hinge

• Deterministic, replayable puzzle generation

• Short, Standard, Daily, Workshop, Quiet, and guided practice modes

• Live movement previews before every committed fold

• Mouse, touch, and full keyboard controls

• English and Korean interface

• Optional sound, visible keyboard focus, reduced-motion support, and increased-contrast support

• Local run recovery with no account required

PHASE MASON is free to play. Optional support is appreciated, but every mode and feature is available without donating.

PRIVACY AND OFFLINE PLAY

The game does not request an account or personal information. It contains no ads, in-game purchases, analytics, or remote gameplay services. Preferences and run progress are stored only in the player’s browser. After the page has loaded, the game itself does not need a network connection.

한국어 안내

하나의 봉인, 서로 연결된 두 개의 면. 한 번 접을 때마다 양쪽이 함께 변합니다. 공개된 작업 카드가 지정한 줄을 1·2·3칸 움직여 앞면 핵석, 활성 황동 경첩, 뒷면 핵석과 봉인문을 연결하세요. 마우스·터치·키보드를 지원하며, 모든 모드와 기능은 후원 여부와 관계없이 무료입니다.