Game 3 - CatSeabank

Points: 479

We made a game.

Handout files

CatSeaBank.zip

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Let's play

Ok, so we run the provided game and see some NPC. Let's talk to him:

Oh, looks like he won't talk to us unless we pay him.

Luckily, there was a bank next to him—great!

Unfortunately, this bank has only 1000 cash, but it's not a problem as long as we are hackers...

We simply deposit a negative amount to get more cash—infinite money glitch, baby! ;D

Now we can talk to the other cat.

Get wisdom button

Pressing the Get wisdom button plays an audio message:

“Yet, it is often not in the open, but within the very fabric of this world. The architects have found their secrets inside the vessel's core, hidden among its many forms. Dig through the buried artifacts, extract what is unseen, and seek the whispers trapped in waves. Only by unearthing the lost fragments, those sealed within the archives, will the melody reveal its truth.”

Extracting game files

Ok, now it's time to look into the game files. For this purpose, I used "Asset Ripper" software.

The next step was to simply export the resources.

Finding the hidden flag

When I played the extracted audio file, it sounded like nothing—so I guessed the flag was hidden inside the file.

Since the spectrogram wasn’t sharp enough, I asked my friends on our CTF team's Discord for help.

And together, we found the flag! 🚀🔥