Comparison

SudoSodoku vs CHRONOS II

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

SudoSodoku

Features
Read full description

$ sudo solve [sudo] password for logic: ******** > root access granted. SudoSodoku is the only sudoku that treats you like root. You are not filling in numbers. You are breaching a grid. Puzzles generate behind a live breach log. Victories detonate matrix rain and end the only way they should: ACCESS GRANTED. THE TERMINAL - Authentic green phosphor on deep dark glass, all monospaced - Mechanical-keyboard haptics on every keystroke - A victory sequence with an ELO ticker and rank-up ceremonies THE GRID - Infinite procedural puzzles, graded by a logical solver (0-100) - Four difficulty flags: --easy --medium --hard --master - Smart pencil notes with auto-clear and compound undo - An optional play clock that only counts active time THE LADDER - A real ELO rating with anti-smurfing, from SCRIPT_KIDDIE to THE_ARCHITECT - Game Center leaderboards that rank performance, never spending: global ELO plus fastest-time boards per difficulty PURE LOGIC. ZERO NOISE. - No ads. No lives. No pay-to-win. No guilt mechanics. - Every animation respects Reduce Motion. Sounds are never forced. root@ios:~$ ./execute_

About

CHRONOS II

Experience a cyber thriller played entirely through a command line. Follow a digital entity through interconnected systems, solving interactive terminal puzzles inspired by real hacking events. Explore simulated networks and uncover a compelling narrative.

Highlights
  • Terminal-driven chapters
  • Story spanning hacking history
  • Simulated networks and tools
  • Hidden discoveries and multiple endings
  • Built-in notes and keyboard
  • Offline play
  • No ads or tracking
Read full description

CHRONOS II is a cyber thriller played entirely through a command line. Something escaped from a sealed archive. Now it is moving through the world's connected systems: a security camera, a bank network, the global phone system, a power grid, a nuclear facility, and a forgotten Cold War satellite. You are following it from machine to machine. But it is not running from you. It is leading you somewhere. CHRONOS II turns real events from the history of hacking and cyberwar into a series of interactive terminal puzzles. Explore simulated networks, inspect files, trace connections, uncover vulnerabilities, and work out what happened before the system moves on. Or before something inside it does. There are no conventional action sequences or point-and-click puzzles. Everything happens through the terminal. Type commands, study the responses, take notes, and learn how each system works well enough to break into it, or to keep it from breaking apart. Your deck keeps track of every machine you have reached, the tools and fragments you are carrying, and a live feed that changes as the story unfolds. An extended keyboard provides the keys a terminal needs, while built-in notes, command history, copy and paste keep the experience comfortable on a phone. Inspired by real cyber incidents, technologies, and moments in computing history, CHRONOS II is a work of fiction. Its systems and commands are carefully designed simulations, built to feel authentic without pretending to be real-world infrastructure. Features • Seven terminal-driven chapters • A story spanning decades of hacking and cyberwar • Simulated networks, machines, and command-line tools • Hidden discoveries, an optional detour, and four endings • Built-in notes and a terminal-focused keyboard • Fully playable offline • No account, advertisements, analytics, or tracking • Free, with nothing to buy You opened the door. It left you a trail for a reason.

Screenshots

SudoSodoku4 screens
CHRONOS II4 screens

Verdict

The call

The clearest difference is iOS requirement: CHRONOS II at 15.0 against SudoSodoku's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
SudoSodoku versus CHRONOS II: the parameters behind the verdict, then further details
ParameterSudoSodokuCHRONOS II
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequency—Fortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size1 MB7 MB
Age rating4+12+
DeveloperKai ChenReVeNG System

In-app purchases

None

SudoSodoku

No in-app purchases

None

CHRONOS II

No in-app purchases

Questions

Is SudoSodoku free?
SudoSodoku is free to download, with no in-app purchases.
Is CHRONOS II free?
CHRONOS II is free to download, with no in-app purchases.
Do SudoSodoku or CHRONOS II have ads?
Neither SudoSodoku nor CHRONOS II shows ads.

Other comparisons