Texhnolyze, .hack//Sign Recommendations
both animes have similar electric atmosphere. they involve with different main story, but they have mysterious
male characters as the main role. plus they follow a complicated plot so if you like mind blowing animes I suggest you this.
both animes have similar story development because events are slowly processed.
both animes take place in strange worlds, for Teknolaiz it is inside underground city while .hack// the story processed inside a video game.
i HOPE you will like both.