redbat.freberg.guru
A web-based hacking wargame. ▉
74 levels of cookies, ciphers, web exploitation, cryptography, forensics, reversing, retro formats and phone phreaking. Crack each puzzle to unlock the next and climb the ladder.
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1 of 5 players have conquered all 74 challenges.
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7 chapters, 74 levels — start at the fundamentals and climb through web exploitation, cryptography & forensics, reversing, retro formats and phone phreaking.
Cookies, encodings, ciphers and inspection — the basics.
Classical crypto, recon, custom headers, JWTs and injection.
Hands-on web attacks against sandboxed targets.
XOR, RSA, hashes, stego and traffic — break the ciphers and read the bytes.
Deobfuscate, decompile and outrace real-looking apps — JS, WASM, races, deserialization, GraphQL and crackmes.
Vintage encodings, dead protocols and the weak legacy crypto modern security exists to replace — Baudot, EBCDIC, punched cards, LM and crypt(3).
The telephone network before the internet — tone signalling, the boxes and the recon culture that predated it. All historical, simulated and decode-only.
Prefer to unlock everything at once? A whole-game license opens every paid chapter — pick a week, a month, or a lifetime. Buy a key, then redeem it on your account.