Earthquake Games / NinelumeComing soonWhere logiccomes tolight.
Ninelume is premium Sudoku the way it should feel: the grid at the centre, a coach that teaches instead of telling, and not a single ad, timer or energy bar between you and the next deduction. Launching first in Brazilian Portuguese.
Built for the aha.
Solo, native and offline-first. Start, pause and finish a puzzle with no network, no nominal account and no analytics.
The launch catalogue is a curated, versioned collection of Classic Sudoku. Every puzzle is validated for a unique solution and a human solving route with no guesswork — difficulty is measured by the same engine that powers the Coach, not eyeballed.
Stuck? The Coach reveals the next deduction as a layered explanation built from the real state of your grid. It covers 30 human techniques — from singles to subsets, fish, wings, colouring and chains. A hint isn't an answer; it's the why.
Candidates mode, visual markings for hypotheses, unlimited undo and redo, pause and resume, and a full replay of your decisions. When you finish, the completion happens on the grid itself — no promotional interruption screen.
A hint is not
an answer. It's a
way of seeing.
The Aha Coach starts from the real state of your grid and your candidates, highlights the relationships that matter, and unfolds the next deduction in layers — nudge first, full reasoning last. It speaks 30 human techniques, from naked singles all the way to fish, wings, colouring and chains.
No dark patterns.
Just the grid.
Your progress lives on your device. Sync, when available, is optional and pseudonymous — the network is never a requirement for solo play.
/// One Rust core is the single authority for rules, difficulty and the Coach — the same logic on every platform, every explanation reproducible.
The first light
is almost here.
Ninelume is in final release checks for iOS, iPadOS and Android. Want to know the moment it lights up? Drop us a line.