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For saleMostly built

Harbor Four

AI generated four in a row strategy game with three computer styles, local duels and ten original tactical lookout positions.

Screenshots

Screenshots supplied by the seller.

Description

AI generated. Drop Sun and Tide tokens into a harbor board and connect four horizontally, vertically or diagonally. Original token symbols and a calm seaside design make turns and winning lines easy to read.

Play the computer at three bounded search settings or take turns with another person on the same screen. Choose either side in computer play. Immediate winning drops and single immediate threats are checked before deeper search. Undo can restore a human turn, and pause covers the board while a pending reply waits.

Ten original tactical positions each have exactly one winning column. Try a drop, restore a wrong guess automatically or reveal a clue. Keep a local tactical logbook, save the current board and export results. All editable code, original artwork, tactical data and generation tools are included.

Condition

Development stage: Mostly built (seller-declared)

Seller-declared: provided by the seller, not independently verified by SellMyVibe.

  • Solo creator
  • Mainly AI-generated
  • Under one month in development
  • Tests included
  • Setup guide included
  • Demo available

What works

  • Traditional four in a row rules on a seven by six board
  • Three computer settings with bounded search
  • Immediate computer wins and threat blocks
  • Human first or computer first solo play
  • Local shared screen two player duels
  • Horizontal, vertical and diagonal win detection
  • Full board draw and full column handling
  • Turn undo with pending reply cancellation
  • Covered pause and pause when hidden
  • Ten original tactical positions with unique winning columns
  • Wrong guess restoration and optional clues
  • Keyboard column navigation and clear side symbols
  • Validated drop history saves and results exports
  • Original tactical generator and deterministic checks

What’s unfinished

  • No online multiplayer or perfect computer play claim
  • No formal age suitability or educational outcome validation
  • Browser file download completion and browser file reload remain unverified
  • Physical mobile devices and actual child playtesting remain unverified

Included assets

Editable source, original Sun and Tide vector tokens, bounded computer search, ten original tactical positions and their

Technologies

HTML, CSS, JavaScript, inline SVG

Setup requirements

Open index.html in a current browser or serve the folder with any static server. No build step is required. Choose settings and select Start new board. Hosted and delivered versions use the same source.

Dependencies and ongoing costs

A current browser. No paid services, external libraries or accounts. All assets are included.

Known limitations

Standalone intentionally silent browser game using traditional four in a row rules. The computer uses bounded searches of increasing depth and is not guaranteed to play perfectly. Both people share one screen in local duel mode. Tactical clues reveal the winning column and local records are editable rather than verified leaderboard results. Settings apply when starting a new board. No cloud storage, online multiplayer, accounts or automatic browser storage are supplied. Browser file downloads can be restricted. A 390 by 844 viewport was checked with keyboard column play and Captain replies, without horizontal overflow. Physical device compatibility remains unverified.

Listings are reviewed for completeness and clarity before publication. Approval is not a guarantee of quality, ownership, security or commercial success. Read the details and ask questions before buying.