DataJack is probably one of the most punishing games we have ever come across in recent years. It is an isometric stealth/action cyberpunk game in development by Epic Banana Games where you play the role of a cooperate mercenary who gets hired to hack computers, steal information, perform assassinations, and do a variety of other dirty jobs by the megacorporations that run the world.
DataJack is unforgiving in its execution, and not just in the traditional sense of fighting tough enemies. Think of it as a very strange combination where Deus Ex meets FTL.
It wooped my ass too
Glad I wasn't the only one!