If you're looking for anime similar to Dorei-ku The Animation, you might like these titles.
22-year-old Ryouta is an unemployed good-for-nothing who spends his days living at home and playing Btooom, a wildly popular online game that's sold over three million copies worldwide. Alongside other teammates, Ryouta battles it out with others using powerful bombs and sonar that can reveal hidden enemies, and his dedication has earned him the title of Japan's top player. But soon, Ryouta's pastime becomes a terrifying reality, as he and many others are dropped onto a tropical island and forced to play Btooom – but this time for real. Now, he and the rest must fight to the death by whatever means necessary, as the only way to win this deadly game is by killing seven of the other players.
While the setting and the type of high-stakes game that is played may not be the same, the tone of these anime and the fact that all of the characters are grey instead of black or white are very similar.
There's also the fact that both are made for mature audiences and contain material that may not be appealing to some.
Yuki is a disaffected middle school boy who has no dreams or goals in life; in fact, the only thing he has is his diary. Writing down everything he observes and documenting every thought, the young boy uses it as an outlet for his imagination. One morning, however, Yuki wakes up to find his cell phone filled with diary entries for the next ninety days. Thinking nothing of it, he continues his morning until he begins to realize that everything on his phone is rapidly coming to pass, and it isn't just mere coincidence. Now, Yuki suddenly finds himself thrust into a survival game against other future diary owners to become the new Lord of Time.
The manga's story follows a brilliant gambler named Baku "Usogui" Madarame as he lays down his life as the wager for various games.
One stormy night, a desperate man finds himself playing Mahjong with yakuza thugs; the prize is his life. He is losing, and death seems certain, until a teenage boy stumbles out of the darkness into the Mahjong parlor, drenched in rain. Allowed to watch, the boy soon offers to play in place of the marked man, and that night, a legend is born. After his first taste for Mahjong, Akagi Shigeru finds himself entangled in the dark underworld of Mahjong gambling: for money, reputation, and lives.
Tatsuhiko Kido, a young man who moves from the countryside to Tokyo to attend a vocational school in the spring. He discovers a tiny hole in a wall of his new room, and although he looks in from time to time, he sees nothing at first. However, one day, he spies a girl.
Kaiji Ito is as pathetic a person as they come; a man who gambles his days away, only winning enough to lose significantly more. He hates himself, is riddled with envy for others, but is ultimately too weak to think of a way out of his massive debts. Then one day he is approached by a strange man who offers him what seems the solution of a lifetime – to take a short journey on a ship called Espoir, during which time he will be given the chance to win more cash than he can dream of in a card game like no other. Ever the desperate, Kaiji takes the gamble of his life; however, the game turns out to be far darker than he expected and the hard lessons pile on thick and fast. Now stuck in a closed world of unsavory characters willing to do anything to destroy him, can Kaiji gather enough courage to outwit them all?
Sunk deep in colossal debt, Kaiji must spend the next decades of his life working it off in an underground slave pit, shovelling dirt with other disgraced down-and-outs. But far be it for Kaiji to have learned his lesson from his experiences on the Espoir. Upon discovering that the only fast track out of gambling-induced slavery is to gamble even more in a dice game called chinchirorin, he throws caution – and presumably his senses – to the fickle winds of luck! As well as giving him plenty of reasons to weep, this takes him up against formidable foes like his supervisor, Ohtsuki, whose dirty delight is to ruin the workers psychologically as well as financially. As the saying goes, in a bet there's a fool and a thief, and Kaiji can only hope he will not end up the former.
At St. Mihailov Academy, strange things are happening. Not only did the dean disappear, leaving his daughter Tomo and adopted daughter Mafuyu alone, but girls in the nearby city are being killed by an unknown foe. However, the blades begin to fly when a Russian boy named Sasha arrives. He is a Qwaser, a person able to manipulate the elements after ingesting Soma, breast milk, and he’s not the only one. Soon Tomo and Mafuyu find themselves in the middle of a battle between two groups of Qwasers whose goal is to protect or steal the Theotokos of Tsarytsin. With more allies and enemies arriving, who will survive the assault?