Hacknet

Hacknet is a computer hacking simulator. You take on the role of a user nicknamed Bit and need to investigate the death of the previous "Bit" that was probably involved in illegal activity. To get through the story, you search for the files on other computers that can help to reveal the truth about your predecessor. 
Hacknet combines a graphical interface with a text-based console creating the impression of real hacking software. As a rule, every mission consists of connecting to another computer, breaking its protection system and getting special privileges and access to the database. You need to complete the mission before the speed countdown reaches zero. If you fail, you’ll have one more try to finish the level.
Hacknet is expanded with Hacknet Labyrinths DLC that adds two more chapters to the story, new hacking tools, and a fully new soundtrack.  The game can also be modified by players.