MoonDoku: Sudoku Nights CD Key
PC price comparison · Altamont Interactive · Nov 4, 2026
A cozy little Sudoku for quiet nights. Solve tonight’s puzzle with a cat by your side and earn a new star for your sky. Come back tomorrow for another, and watch your stars slowly come together as constellations. Or settle in with 5,000 more puzzles, Easy to Expert.
Lowest final price
at Steam · Standard Official
Historical low: $6.79 on November 4, 2026
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MoonDoku: Sudoku Nights price history
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Historical lows by store
- Steam$6.79
About MoonDoku: Sudoku Nights
Your little ritual at the end of the day. Solve tonight’s Sudoku and earn a star in your sky. Keep coming back and your stars slowly draw constellations. A cat keeps you company from the observatory window while rain taps the glass and lo-fi plays on the radio. And when one puzzle isn’t enough, 5,000 more are waiting for you. Every night, everyone gets the same Nightly Sudoku. Each constellation takes 7–12 nights to complete, there are four to choose from each month, and every star you earn stays yours. Miss a night? Your constellation simply waits for you. A puzzle finished after midnight still counts for the night you started it, and a star earned under a full moon shines a little brighter. 5,000 more Sudoku puzzles come with the game: 1,500 Easy 1,500 Medium 1,250 Hard 750 Expert No repeats until you’ve exhausted a difficulty. Every puzzle has one solution, reached through logic alone. No guessing required. Easy and Medium ease you in, Hard asks more of you, and Expert introduces techniques such as pointing pairs and subsets. There are no pencil marks. Every number is checked as you place it: correct answers lock in, while mistakes clear themselves. On the Nightly, each mistake adds 30 seconds to your time; on endless boards, the clock never affects your score. Your first mistake is explained, and each board gives you one to three hints, depending on difficulty. Take your time. Between puzzles, it sits on the observatory’s window ledge. While you play, it wanders along the top of your Sudoku board, watching every move. Leave it alone long enough and it falls asleep right where it sits. Click to pet it. Right-click, or click and hold, to change its coat: there are eight, from a plush gray Chartreux to a longhaired Ragdoll. Make a mistake and watch it wince. Get twelve correct answers in a row and it gives you a slow blink. Some nights you’re solving Sudoku. Some nights you’re keeping the cat company. Ten worlds wait beyond the observatory window. Watch cherry petals drift past the glass, settle in with rain falling outside, let fireflies glow in the dark, or look up for shooting stars. Change the view with the brass arrows beside the porthole, or tap the bracket keys while you play. Your Sudoku stays the same. The night changes around you. MoonDoku FM has three stations: Chillhop, Bossa Nova and Downtempo. Add the sounds that suit the night (rain, a cozy café, a crackling fireplace, ocean waves or a distant storm), each at its own volume,…Read more
MoonDoku: Sudoku Nights system requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit (Windows 11 supported)
- Processor: Dual-core, 2 GHz
- Memory: 4 GB RAM
- Graphics: Any GPU with WebGL 2.0 / DirectX 11 support
- Network: Broadband Internet connection
- Storage: 1 GB available space
- Additional Notes: Internet connection required for the nightly puzzle and leaderboards. The bundled puzzle packs play offline.
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 11 64-bit
- Processor: Quad-core, 2.5 GHz
- Memory: 8 GB RAM
- Graphics: Modern integrated or dedicated GPU with WebGL 2.0 (Intel Iris Xe / Radeon Vega or better)
- Network: Broadband Internet connection
- Storage: 1 GB available space
- Additional Notes: Internet connection required for the nightly puzzle and leaderboards. The bundled puzzle packs play offline.
MoonDoku: Sudoku Nights key FAQ
+What is a MoonDoku: Sudoku Nights CD key?
A MoonDoku: Sudoku Nights CD key is a digital code that unlocks the game on a PC platform such as Steam. After redeeming it, you download the game directly from that platform and it stays in your library.
+What is the cheapest price for MoonDoku: Sudoku Nights?
The cheapest MoonDoku: Sudoku Nights key right now costs $6.79 at Steam, 15% off the regular price. We compare 1 offers from 1 store, and the price already includes payment and service fees.
+What is the historical low for MoonDoku: Sudoku Nights?
The lowest price we have recorded for MoonDoku: Sudoku Nights is $6.79 on November 4, 2026. Check the price history chart to decide whether to buy now or wait for the next sale.
+Is it safe to buy a MoonDoku: Sudoku Nights key?
Buying from an official store such as Steam, GOG or Epic Games is always safe. Key resellers are often cheaper but sell keys second-hand, so check the region lock and buyer protection before you buy. Every offer on GameKeyDeal is labelled as official or reseller.
