12 [Similar Anime] Like The Ones Within

A group of teens, each with their own unique talents, are abducted and taken somewhere isolated from the rest of the world. Their abductor, who seems to be a talking animal, tells them that they will be trapped there for the rest of their life, unless...

I feel this is very similar to 'Kiznaiver' because both series have each of the kids being different from each other yet forced into one situation by some one. Plus the mc of both shows seem to be naive while their love interests seem to have something with the situation.

Multiple teens end up in a different world (game) and they have to complete tasks/games in it to succeed and be able to go back to their real lives.

for some reason, they need to reach the numbers they needed (i mean the visitors and the viewers)
challenges come to there way and they work hard to deal with it (like almost all anime have challenges if you just know)

-Both are about people being trapped inside of a game
-Both have the if you die in the game you die in the real world
-Both have a colorful cast

group of individuals stuck together who have to learn about each other and work through different hardships together, another anime about building relationships with each episode portraying a new test/obstacle
i greatly enjoyed both, although nakanohito genome may be considered as less serious

It involves a group of specialize gamers that found themselves in some virtual game, where they have to use their wits and work together if they're survive , the difference were is one was more of a daganronpa knock off.

The same story plot where a group of gamers found themselves abducted and force to play a real life or death game.

Characters being brougth from the "real world" to a fantasy one, and trying to win the game to save their life.

A level-based game.
A mission to solve to get to the next stage and mystery behind every character.
Who are they? What are they doing there? Why are there?

A world based in games, but this time you have to play in order to survive. This concept reminds me a lot to this anime.

the animation gave the same vibe as Mekakucity Actor