Btooom!, Imawa no Kuni no Alice (OVA) Recommendations
Trapped in a survival game, almost as if they wanted to be there.
Arisu is quite similar to Ryouta with quick thinking and puzzle solving skills.
Both end up trapped in a game where they have to survive
Both are very intense and have good action
-Both are a great election if you have low time and you want to watch a fast action anime.
-They are both centred on a group of people that must to play a survival game to live.
Both stories are about a male MC who start to play willingly or not some very dangerous games that can cost them their lives.The male MCs are pretty clever and they usually outsmart their oponents.The side characters and villains are some obsessed or crazy in the head people.
Both are action survival animes. Bloody and gory. People find themselves in an island and have to take part in a killing game to stay alive
Both end up trapped in a game where they have to survive and both are very intense and have the same vibe
Both are set in a battle-royale setting where lives are at stake. Both lose something/someone they love. There are also psychological themes and heavy usage of gore.