Only One Rectangle
Platformer with a variety of disorienting gameplay for an interesting gaming experience. A lot of colors, invisible painted platforms, traps, various puzzles.

Mostly Positive · 20 reviews
75% positive (15 / 20)





HA/CK will puzzle your mind with a variety of challenging levels. You have to solve a series of tests devised by The Programmer. Devise unforethought solutions to achieve top times amongst your friends or worldwide.
Released
February 14, 2019
Price
Platforms
macOS · Linux · Windows
Developer
Publisher
Last sync
September 26, 2026
HA/CK is a hacking inspired puzzle game that puts you in the virtual shoes of a deep learning model. To prove your performance alongside all the generations that came before you, you have to solve a series of tests devised by The Programmer. HA/CK was designed with replayability in mind - compete for the highest scores per level or the fastest complete playthrough with your friends or worldwide.
Do you think you have the skills to reach the top spot in global leaderboards? Compete for the fastest playthrough with speedrun mode. Devise unseen and unforethought solutions to reach the top spots amongst your friends or worldwide.