Star Battle

Star Battle is a free online logic puzzle game that challenges players to place two stars in every row, column, and outlined region without any stars touching, including diagonally.

What is Star Battle?

Star Battle is a placement logic puzzle played on a grid with outlined regions. The goal is to place exactly two stars in every row, every column, and every region, with the additional constraint that no two stars may touch horizontally, vertically, or diagonally. The game runs entirely in the web browser with no download required, and is available at starbattle.online. No specific company or developer is named on the site; it appears to be an independent project.

Key Features

• 200 Progressive Levels — A structured campaign that starts with small, approachable boards and gradually increases in difficulty, providing a clear learning curve.
• Daily 5-Puzzle Pack — A fresh set of five puzzles each day, offering a recurring challenge for regular players.
• Unlimited Practice Mode — Generate unlimited random boards to play without progression constraints, ideal for honing skills.
• Google Sign-In for Progress Saving — Optional account integration that saves unlocked levels and best times across sessions (when configured).
• Hint and Check Tools — Built-in hint system that reveals a star placement, and a check tool that validates the current board state without revealing solutions.
• Shareable Results — After completing a level, players can share their time and puzzle via link, enabling friendly competition.
• No Download Required — The entire game runs in the browser, accessible instantly on any device with an internet connection.

Who Is It For?

• Beginners to logic puzzles — The early levels teach the 2-star rules through play, and the site includes a rules guide and strategy blog for self-paced learning.
• Experienced solvers — The 200-level progression and daily packs provide consistent depth, with harder boards demanding careful deduction.
• Casual players seeking short breaks — The fast-loading interface and quick puzzle rounds (approximately 5–15 minutes) make the game suitable for brief sessions.

What Can You Do With Star Battle?

• Solve a structured campaign — Work through 200 levels, each designed to introduce new logical constraints, and replay completed levels to improve time.
• Compete with the daily pack — Tackle the same five puzzles as other players each day and compare completion times via shared links.
• Practice without limits — Use unlimited mode to generate random boards of various sizes and difficulties for open-ended training.
• Learn solving strategy — Read focused blog posts on how to play, rules explained, and beginner strategy directly on the site.

How Does It Work?

The solving process follows a rhythm: first, scan each color region and identify those with only two or three possible cells. Compare those cells against their row and column constraints, then mark cells that are impossible due to the no-touch rule (stars block all eight neighboring cells). Place a star only when the same cell survives all three constraints. The game provides X marks to annotate impossible cells, keeping the board readable.

FAQ

What is Star Battle?

Star Battle is a grid logic puzzle where exactly two stars must be placed in every row, column, and outlined region, with no two stars touching orthogonally or diagonally.

How many stars are required per row?

Exactly two stars per row, per column, and per region. This is the 2-star variant used throughout the site.

Can stars touch diagonally?

No. Stars cannot touch by side or by corner — all eight neighboring cells are blocked after placing a star.

Is Star Battle free to play?

Yes, the entire game is free to play in the browser. Google sign-in is optional and only used for saving progress.

What modes are included?

The site offers 200 progressive levels, a daily 5-puzzle pack, and unlimited practice mode. All modes are accessible immediately without an account.