About This Game

🧩 Nine digits. Three lives. Your move.

SudokuNexus 2.0 gives you four ways to tackle a grid: unhurried Classic, a race against the clock, disappearing entries and Killer Sudoku with cage totals. Pick your challenge, choose a difficulty and play solo or invite a second player to solve together. Every mistake costs a life. You have exactly three.

🔥 Four modes. Different challenges.

Classic — let logic do the work.
Fill every row, column and 3 × 3 box with the digits 1 through 9, without repeats. There is no time limit. Compare cells, follow the clues and take the time you need before committing to your next answer.

Time Attack — the clock won't wait.
Complete the grid before time runs out. Each newly completed correct cell adds four seconds. Find a move you trust, make it and look for the next one. Speed helps, but a rushed guess can still cost you a life.

Brainstorm — keep your focus.
Solve against the clock while some digits you have entered disappear. The original clues stay exactly where they belong. Keep your focus, rebuild the missing entries and finish the puzzle.

Killer Sudoku — the totals matter too.
The usual Sudoku rules meet numbered cages. The digits in each cage must add up to its total, with no repeats. Combine cage sums with the rows, columns and boxes to narrow your choices. One total can change how you read the cells around it.

🤝 Two brains. One shared grid.

All four modes support solo play and two-player online co-op. Create a room and share its code with a friend, or find a partner playing the same mode and difficulty. You see the same puzzle and each other's selected cell. Three lives are shared between you, with one goal: complete the grid together.

🎮 Get comfortable. Then raise the challenge.

Start with a tutorial or choose from five difficulty levels, from Very easy to Very hard. Generated puzzles have one solution. Track candidates with pencil marks and undo changes to your notes as your reasoning develops. In solo play, pause when you need a break, return to your automatic save or ask for a hint with an explanation.

🚀 A cosmic setting. A grid to conquer.

Each mode has its own cosmic video background, with a refreshed menu that gets you straight into the game. English and Polish narrators add playful, teasing commentary. Prefer a quieter session? Mute the voice, adjust your audio and reduce animations. Check your game history and Steam achievements, including their icons and unlock progress.

This grid won't solve itself. Show it what you've got.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Some visual elements of the game, including promotional graphics, were created using artificial intelligence.