Single-player games like Starlight X-2: Space Sudoku
Below are 11 single-player Steam games similar to Starlight X-2: Space Sudoku, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Starlight X-2: Space Sudoku page.
Ranked picks
- 1
Math Hero - Minimalist Puzzle
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Strategy and Indie with Starlight X-2: Space Sudoku.
MATH HERO is a relaxing puzzle game with simple mechanics.Use simple addition and subtraction operations to reach the endpoint.
- 2
ShapeGrid
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Indie and Casual with Starlight X-2: Space Sudoku.
ShapeGrid is a casual puzzle game. Find your way through different shapes and colors. Solve 70 hand-crafted puzzles or compete against other players in endless mode!
- 3
One Line
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Indie and Casual with Starlight X-2: Space Sudoku.
One Line is a minimalist puzzle game where the objective is to draw a single line filling the entire board. Different mechanics will challenge your mind in this game that is easy to learn but hard to solve. Can you find the correct path?
- 4
Liquidum
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Strategy and Indie with Starlight X-2: Space Sudoku.
Liquidum is an aquatic logic puzzle game, where you strategically fill interconnected aquariums across six challenging sections with unique mechanics.
- 5
One Line: Letters and Codes
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Indie and Casual with Starlight X-2: Space Sudoku.
You have just received a coded love letter! In this minimalist puzzle, you will have to draw a single line to fill the entire board. At each level solved, get a code to reveal a piece of the letter. Gather the codes, read the letter and discover the message.
- 6
SokoSolitaire
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Strategy and Indie with Starlight X-2: Space Sudoku.
SokoSolitaire is a card-pushing puzzle game inspired by Sokoban and Solitaire. You'll find yourself pushing, stacking or flipping cards and more across 60 different handcrafted levels.
- 7
Astra Ignota
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Indie and Casual with Starlight X-2: Space Sudoku.
A relaxing, space-themed puzzle game where you fill a board using symmetrical figures, while uncovering a mysterious sci-fi story. All boards are hand-crafted for maximum enjoyment.
- 8
Math & Topology
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Strategy and Indie with Starlight X-2: Space Sudoku.
A puzzle that challenges both the topological and mathematical skills of the player. Draw lines, use operator tiles to produce new numbers, and complete levels with square- and hexagon-shaped tiles!
- 9
Tents and Trees
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Strategy and Indie with Starlight X-2: Space Sudoku.
Think strategically to place tents in the peaceful universe of Tents and Trees, a chill puzzle game with Picross vibes!
- 10
KorrPadel
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Indie with Starlight X-2: Space Sudoku.
A modern padel simulation where positioning and timing make the difference. Pick your side, choose your partner, and challenge opponents in local or online matches. Real padel, friendly spirit.
- 11
Grids of Thermometers
Single-player alternative to Starlight X-2: Space Sudoku — playable solo, no multiplayer required. Shares Strategy and Indie with Starlight X-2: Space Sudoku.
Grids of Thermometers delivers the relaxed fun of a pen-and-paper logic game right to your fingertips. In each level, you fill a grid of thermometers with mercury. Numbers on the grid edges tell you how many cells must be filled in each row and column.