Yep, the title is no kidding. The latest game from Roman Spiryagin of Game Dev Team really is hard. Even the easiest level is no kidding. However, as Roman said, this is one of their main feature. As a matter of fact, most iOS games lately have been 'too kind' to the players. The level design is too tolerable, it's not even challenging for many hardcore gamers.
This is understandable since most developers want to reach as many players as possible, even if that means reducing their difficulty. None of this matter for Roman though, it seems as if game difficulty is none of his concern. His latest game, Hardboiled, clearly shows that a game should be challenging enough, even the easiest level will keep you grind your teeth.
Despite, the difficulty, Hardboiled itself is a satisfying game. Inspired from Fallout 1 & 2, you will get two gameplay at the same time, without any cutscenes. The first gameplay is free roaming world exploration. You can walk anywhere throughout the map, interacting with the NPC, talking with some survivors there.
The second gameplay is when you decide or asked to fight against enemy. Once, you choose to fight, you'll be automatically entering this second gameplay. It's automatically become a turn-based strategy genre like X-COM and that kind of game.