Sprenzy
Three sparks. One ignition. Clear the board.
Sprenzy is a chain-reaction puzzle. You get three sparks per board. Place them, hit IGNITE, and watch the explosions ripple across the board. Clear 90% to pass, and clear it all for a perfect three stars.
Nothing is random. The same sparks always give the same result, so a miss is never bad luck — every result can be read, understood, and beaten. Every board has a perfect solution. Finding it is the puzzle.
How It Plays
Place Your Sparks
Tap a particle to arm a spark; tap again to disarm. One spark per particle, three at most. Spark order never matters — only placement.
Hit IGNITE
Each spark detonates the particle it sits on, even a neutron.
Watch the Chain
Every explosion hits its four neighbours — never diagonally. Anything that takes enough hits explodes in the next wave, and the chain runs until nothing else can go.
Score It
Reach the pass mark to unlock the next level. It starts at 90% of the board and rises in later stages. Near-perfect earns ★★; clearing every particle earns ★★★.
Learn From the Miss
Survivors glow, near-misses are traced with dotted lines, and tapping any survivor explains why it made it.
The Particles
Proton
Explodes after one hit.
Electron
Explodes after one hit. Differs from a proton only in colour.
Neutron
Needs two hits. The first strips its shell.
Gluon
A wall. Absorbs hits, never explodes, can't hold a spark, and doesn't count toward your clear. Gluons split the board into chambers joined by narrow gates.
Early levels print how many hits each particle still needs. Later, the numbers fade after the board appears, and eventually they stop appearing at all.
Features
100+ Levels, Ten Stages
Ten stages of increasing difficulty plus a short Training stage that teaches the rules in five boards. Phones and tablets each get their own purpose-built boards, and the pass mark climbs from 90% to 96% by the final stage. Stuck? Skip a board and come back later.
Daily Challenge
A new board every day, the same for every player worldwide, released by your local calendar date. Easy on Sunday, Tuesday and Thursday; Medium on Monday, Wednesday and Friday; Insane on Saturday. Your first ignition is your official score — after that, practice freely. SHARE copies a spoiler-free result card.
Leaderboards
Daily, Progress, and First-Try boards, each showing the top 100 and your own position. Other players' spark placements stay hidden until the day's board closes, and every score is replayed and verified on the server, so results can't be faked.
DDAP Sigil
No account, email, or password. Your Sigil is created automatically: a gamertag you can change any time and a unique neon glyph generated just for you. It carries across your Apple devices via iCloud Keychain, and you can delete it — and everything on our servers — from Settings.
Stats
Levels completed, contiguous progress, perfect clears, first-try perfects, Dailies played, and Daily perfects — plus your global Daily, Progress, and First-Try ranks, each one tap from the full leaderboard.
Look and Feel
Neon cyberpunk visuals, a sibling to DDAP's Abysstris. Crisp sound design and haptics make every chain reaction hit. Full-screen play; tablets play in portrait or landscape.
Screenshots
Privacy
Sprenzy stores your progress on your device. The online features — Daily Challenge, leaderboards, and global stats — use an anonymous DDAP Sigil: a random ID, your chosen gamertag, and your game results. No name, email, phone number, or location is collected. Data is never sold, never used for advertising, and never used to track you. You can delete your Sigil and all of its data from inside the app at any time. Read the full privacy policy.
Behind the Build
One Codebase
A single Flutter/Dart codebase for iOS and Android, with separate phone and tablet level sets.
Simulator-Verified Puzzles
A custom simulator generates every board, verifies each has a perfect solution, and tunes difficulty stage by stage — measuring how often random placements pass and how rare perfect solutions are.
Server-Authoritative Scoring
A small Dart backend on Google Cloud Run and Firestore recomputes every submitted result from the board and spark positions. The app never reports its own score.
Password-Free Identity
DDAP Sigil uses a 256-bit credential that the server stores only as a hash, with deterministic per-player glyphs and full self-service deletion.
Join the Sprenzy Beta
Sprenzy is in private beta for iPhone, iPad, and Android phones and tablets (iOS / iPadOS 15 or later). Testing is by invitation: send an email to info@deepdarkabyss.com and say whether you're on iPhone/iPad or Android, and we'll get you in.
Sprenzy is free during the beta; final pricing hasn't been announced yet. No account is needed — no email, no password, no sign-up.