Hacker is an adventure/trading game based on a unique idea. You start as a real hacker would, with no information about what's to come, driven only by ambition.
The game opens with a plain text screen asking for the login password. To break into the system is your first puzzle. Once inside, you discover you've stumbled upon a conspiracy of global impact. From then on, you navigate a robotic drone through an underground tunnel system around the globe.
In major cities, you may surface and trade items with contact persons for cash. When delivered to the correct city, these items can be exchanged for evidence. If all evidence is collected, you must inform the FBI. You'll also need to figure out the correct routes and trades, as well as dealing with system malfunctions and security checks.