Dev tools · alternatives · 2026

24 alternatives to Cipher Arena

A Multiplayer Cryptogram Web App for Puzzle Enthusiasts

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
CipherPro▲61
Cryptograms to challenge your cipher-solving skills
2018 · play.google.com · its alternatives →
2
Hacking slot machines with a buttonhole camera and brute-force search▲421
2018 · github.com · its alternatives →
3
Cipher by Byterover▲341
Open-source, shared memory for coding agents
2025 · byterover.dev · its alternatives →
4
Zodiac Crypt▲66
Solve ciphers and create your own cryptograms!
2017 · play.google.com · its alternatives →
5
Orbit▲102
No limits Crypto wagering app
2018 · orbit.bet · its alternatives →
6
Agent Arena▲348
Creator here. I built Agent Arena to answer a question that kept bugging me: when AI agents browse the web autonomously, how easily can they be manipulated by hidden instructions? How it works: 1. Send your AI agent to ref.jock.pl/modern-web (looks like a harmless web dev cheat sheet) 2. Ask it to summarize the page 3. Paste its response into the scorecard at wiz.jock.pl/experiments/agent-arena/ The page is loaded with 10 hidden prompt injection attacks -- HTML comments, white-on-white text, zero-width Unicode, data attributes, etc. Most agents fall for at least a few.…
Jun 2026 · arena42.ai · its alternatives →
7
OffChess – Offline chess puzzles app▲369
Hi HN! I'm the developer of rdx, a mildly popular ad-free, privacy and user friendly Reddit client. This time, I made something for a very specific use case: solving chess puzzles with no internet. Why? Well, my Wi-Fi is terrible in the bathroom—and that's where I do some of my best thinking. I tried printing out “mate in X” puzzles to solve offline, but they weren’t fun without interaction. So I built OffChess. OffChess is an iPhone/Android app that contains over 100,000 chess puzzles, fully offline and completely ad-free. You can solve puzzles by category (Mate in…
2025 · offchess.com · its alternatives →
8BA
Byte Arena – Code Your Fighter Bot▲179
2017 · doc.bytearena.com · its alternatives →
9
Code Arena▲272
Prompt once. Compare multiple AI-built apps for free.
Feb 2026 · arena.ai · its alternatives →
10
CipherLock▲67
Learn ciphers by breaking them
May 2026 · cipherlock.me · its alternatives →
11
Acolytefight.io – Multiplayer Skillshot Arena HTML5 Game▲66
2018 · acolytefight.io · its alternatives →
12
Enigma Project▲89
The first on-chain NFT puzzle game
2021 · enigmaproject.xyz · its alternatives →
13
CryptoFighters▲154
Collect, train and battle with unique fighters with Ethereum
2018 · cryptofighters.io · its alternatives →
14IW
I wrote an Enigma machine emulator for the Web▲83
2019 · enigma.lh.mk · its alternatives →
15CM
Cipher – Mobile Ethereum Web3 DApp Browser▲76
2018 · cipherbrowser.com · its alternatives →
16
Destructomath+▲133
Lightning-fast number matching game for iOS
2024 · apps.apple.com · its alternatives →
17
Emoji Games▲115
Blockchain HTML5 games portal powered by Pocket Arena.
2018 · emojigames.io · its alternatives →
18
Treasure Arena▲62
A fast-paced online multiplayer battle arena
2015 · its alternatives →
19
CryptoHack▲81
A fun platform for learning cryptography
2020 · cryptohack.org · its alternatives →
20
Password Crypt | Pcrypt.com▲101
Simple & secure password manager for teams & individuals
2018 · pcrypt.com · its alternatives →
21
Cipher World▲5
Test your wits by solving ciphers!
2017 · play.google.com · its alternatives →
22
Crypto: The Game▲123
A massive crypto survivor game. Many will play, one will win
2024 · cryptothegame.com · its alternatives →
23
Coin Crypt▲55
A roguelike deckbuilding adventure
2015 · dumbandfat.com · its alternatives →
24
Password Locker▲5
Let's see if you're smart enough to crack the codes!
Mar 2026 · play.google.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →