The Hacker plan is a paid plan on Repl.it that costs $7/month. Its perks include private repls, faster machines, and unlimited multiplayer invites.
It is also often given out as a reward for challenges.
There was recently a survey about how users used repl.it. Upon completion, it gave you a promo code for 90 free days of the Hacker plan. The code is active and replDex does not have the authority to release it until it is deactivated.
Butt you can get it for free if you got Github student pack!
Code is: thankyou