How to Build a Hacker Simulator Game
Vibe code a fake terminal game where players type commands, crack codes and race a countdown before the firewall locks them out.
About this tutorial
A hacker simulator is a pretend computer terminal. Green text scrolls on a black screen, the player types commands like scan, decrypt and unlock, and the game answers back. Nothing real is being hacked, it is a puzzle game wearing a cool costume.
You build it by describing what you want in plain English and letting the AI write the code, then testing it and asking for one change at a time. First the terminal, then commands, then a password puzzle, then a countdown timer and a win screen. That loop of prompt, play, tweak is exactly how real game studios iterate, just much faster.
What you need
Step by step
- 1
Describe the game
Prompt: build a fake hacker terminal game with black background and green monospace text where the player types commands
- 2
Add a command line
Ask for an input line at the bottom with a blinking cursor that prints whatever you type into the log above
- 3
Teach it commands
Add help, scan, decrypt and unlock, and make each one print a different fake response
- 4
Fake the file system
Make scan list a few pretend files like payroll.txt and vault.key so there is something to explore
- 5
Hide a password
Put a 4 digit code inside one of the files and make unlock only work with the right code
- 6
Add a countdown
Add a 60 second timer at the top, and if it hits zero show a firewall lockout screen
- 7
Add typing effects
Ask for text that types out letter by letter with a soft beep so it feels like a real terminal
- 8
Add a win screen
When the code is correct show ACCESS GRANTED in big letters with a glitch animation
- 9
Add levels
Make level 2 use a longer code and a shorter timer so the game gets harder
- 10
Test and tune
Play it three times, then change one thing that felt unfair or confusing
- 11
Publish it
Publish your game and share the link so friends can try to beat your best time
Screenshots
Fun facts
How do you build a hacker simulator game with AI?
Start with one sentence describing the whole game, then grow it in small steps. Ask for the terminal look first, then the input line, then one command, then the puzzle, then the timer. After every change, play the game before asking for the next thing. Small prompts are easier for the AI to get right and much easier for you to debug when something breaks.
What makes a hacker simulator fun to play?
Three things: discovery, pressure and payoff. Discovery comes from hidden files and commands the player has to find. Pressure comes from a countdown or a limited number of tries. Payoff is the ACCESS GRANTED moment with sound and animation. If your game feels flat, one of those three is usually missing.
What coding skills does this tutorial teach?
You learn about input handling, conditional logic, string comparison, timers and game state. Even though the AI writes the code, you are the designer deciding rules, difficulty and feedback, and reading the code to understand why a change worked. That mix of design thinking and code reading is exactly what vibe coding is.
Is this a good first game for kids to build?
Yes. It needs no art, no physics and no complicated animation, so nothing hides the logic. Kids see immediate results from a single prompt, which keeps motivation high, and the game grows naturally with extra commands, levels and story text as confidence builds.
Need help?
My commands do nothing when I press enter, how do I fix it?
Tell the chat exactly what happened: when I type scan and press enter nothing prints in the log. Ask it to check the enter key handler and print the command back first, then add the responses one command at a time.
Is a hacker simulator actually teaching real hacking?
No. Every command and file is pretend text your game prints. It teaches typing, logic, pattern spotting and how a command line works, which is the safe and useful part.
The game is too hard, how do I make it easier?
Change one dial at a time: give the timer 90 seconds instead of 60, shorten the code to 3 digits, or add a hint command that reveals one digit.
How do I make it look more like a real terminal?
Ask for a monospace font, a faint scanline overlay, a blinking block cursor, and text that appears letter by letter instead of all at once.
