Tokkou

they're both great anime which has lots of blood and violence. Also they have demons that they go around killing so that they could save the world.  

both invole hunting demon like creatures and tons of action. A great anime that has lots of blood and good fighting scenes.  

Blood+ and TOKKO's story lines are very similar( blood, gore, slicing things etc.). 

Both titles comes off as violent anime series involving action, drama, gore, and other tragedies. Both series' main protagonist's lives completely change after certain circumstances and are now realizes that they may never go back the way it was before. Both series have supernatural elements involving demons which brings forth the violence and gore.  

Characters are similar, both have blood-soaked action with supernatural creatures. If you enjoy mystery/sci-fi based stories that are like Gantz, I recommend watching TOKKO. 

theyve both got the smae feeling to it. Gantz has way more action, but i still reccomend Tokko if you liked Gantz(vise versa) 

These animes deal with mysterious incidents happening to the main characters, including a semi-alien attack and the goal in life to fight against those aliens. Both are bloody and gory which if it's what you're looking for you should watch it.  

These two anime have LOTS of points in common. LOTS. Firstly, both in EL and Tokko there is the idea of revenge, sacrifice, anger, sad past, and happiness. Both have dark atmospheres and fights against non-human creatures. Both have horror, violence, splatter and gore in it, with a touch of nudity (even if in EL there's much more ecchiness). In both anime there are misteries, secrets and investigations. Also the background of the characters is really similiar: both Kouta and Shindou have lost their parents some years before, and both of them met Lucy and Sakura when they were little (and both Lucy and Sakura have pink hair!). Even the end is kinda similiar, in fact they're both misterious and not well-explained endings: (SPOILER!!!) in both anime the female protagonist sacrifices her life for the one she loves, even if there's a difference: in EL it's still not clear if Lucy survived or not, in Tokko we know that Sakura is still alive. (END OF SPOILER) Another thing is in both EL and Tokko there are many flashbacks about the past of the protagonists. In both there are more female than male characters. Both anime are long 13 episodes. Even the animation is similiar (especially the splatter scenes). Both good anime and both worth watching, even if Elfen Lied is a lot better for me. read more 

Although Tokko is slightly more of a male aimed show than Elfen Lied it felt like almost the same thing. There is the whole 'boy who met girl as a child and then never saw her again until x many years later' cliche in this series too. Hell, the chick, Sakura if I remember right, even looks like an older Lucy. Tons of blood and violence as well as the sentimental lovy dovy stuff as well. Not quite as emotional as Elfen Lied but enthralling all the same. Check it out. 

Memorable openings are important and both of these series has done that. Both of these anime(s) have very memorable opening episodes/scenes where most people will remember it for a long time. The similarity in these two series involves the action, gore, and emotional tragedy that the main characters suffers through. The protagonist of both series meets other characters and shares the pain as episodes progresses. Additionally, there is sadness, bloody background, and dark mood that fills the atmosphere of both of these anime(s). There is also romance, drama, and even little comedy filled in these thriller-coaster ride. 

Claymore reminded me of Tokko since the first episode. Very similar animation (not fluid at all), same type of music (nothing great), similar story. In fact, in both anime, the main characters decide to become murderers for the same reason: revenge. Both have lots of gore, violence, female killers, and sword fights against non-human creatures. Both just... don’t end. Both average anime, but I still like Tokko more than Claymore. 

Both have a lot of sword fighting, the animation is pretty much alike. There are monsters in both, and has awakened beings in them. 

Both of these have protaganists driven by revenge and and feature badass women with swords, also the swordplay has the same kind of style to it, but most importantly THEY ARE BOTH AWESOME! 

Both series contains a dark atmosphere with supernatural elements in the field of detective fiction, crime solving, action, horror, and mystery. Both series' main protagonists are involved with the police force although with different motives. Both series also contains violence and gore mixed in with some inklings of romance. 

They both share the concept of deamon slaying.