Sudoku Collection: Classic Sudoku, Killer Sudoku, Diagonal Sudoku, Jigsaw Sudoku is a focused, offline-friendly package built for players who want variety without the noise. It combines multiple Sudoku rule sets under one roof, adds modern solving tools, and wraps everything in a customizable, low-distraction presentation designed to keep you in a steady solving rhythm.

Eight ways to solve

The headline feature here is breadth: you’re not buying a single ruleset with a few extras—you’re getting a full suite of popular variants. The collection includes:

• Classic Sudoku — the standard 9x9 logic grid.
• Killer Sudoku — cage sums add arithmetic constraints to the usual row/column/box logic.
• Diagonal Sudoku — both main diagonals must also contain 1–9 without repeats.
• Jigsaw Sudoku — irregular regions replace standard 3x3 boxes.
• Hyper Sudoku — additional sub-regions introduce extra uniqueness constraints.
• Thermo Sudoku — “thermometers” enforce strictly increasing digit sequences from bulb to tip.
• Arrow Sudoku — arrow lines where the bulb value equals the sum of digits along the arrow.
• Kropki Sudoku — dot relationships indicate consecutive or 1:2 ratio neighbors (depending on dot type).

Across these modes, the game ships with 320 bundled puzzles spread over five difficulty levels: Easy, Normal, Hard, Expert, and Master. That structure makes it approachable for beginners while still giving experienced solvers room to climb.

Clear tools, fewer distractions

Sudoku lives or dies by usability, and this collection leans into practical features rather than gimmicks. You can:

• Enter candidates (notes) for pencil-mark solving.
• Undo and redo moves to test lines of reasoning.
• Highlight related cells to reduce visual scanning and mistake-prone backtracking.
• Track remaining digits to quickly see what’s still available.
• Choose whether the game automatically checks entries.
• Choose whether the game removes notes automatically as you place final numbers.

For longer puzzles and tougher variants, local progress matters. The game supports local session saving, letting you leave a grid mid-solve and return later without losing your place.

Make the space your own

If you’re the type who plays Sudoku to settle your brain, the presentation options are a welcome bonus. You can pick from 16 grouped backgrounds (static or dynamic), and shape the soundscape with three music tracks plus 14 mixable ambient sounds. The end result is a calmer, more personal solving environment—whether you want near-silence, gentle music, or a layered ambient mix.

Accessibility and comfort settings also get attention, including options such as reduced motion and screen shake controls to better suit sensitivity preferences.

A focused offline collection

This is a single-player package built for offline play. There’s no requirement for online connectivity, accounts, or competitive modes; it’s simply a self-contained library you can play with mouse and keyboard at your own pace.

Language notice (important for Mac players)

The current release supports a Simplified Chinese interface only. If you prefer English UI, keep this in mind before purchasing—especially since menu clarity and tool labels are central to smooth Sudoku play.

Mac system requirements

Minimum:

• OS: macOS 12 or later
• Processor: 64-bit Intel or Apple Silicon processor
• Storage: 100 MB available space

Recommended:

• No specific recommended requirements listed.

Who is it for?

• Newer solvers who want a structured difficulty ramp and helpful assist options.
• Variant fans who like switching between Killer, Thermo, Arrow, and more without buying separate apps.
• Offline players looking for a quiet, self-contained puzzle library on Mac.

If the Simplified Chinese-only interface isn’t a dealbreaker, Sudoku Collection is an efficient way to stock your Mac with a broad set of Sudoku variants, solid quality-of-life tools, and a calm presentation tuned for long solving sessions.