Zero Escape: Virtue's Last Reward Special OVA(2011)

Zero Escape: Virtue's Last Reward Special OVA is an anime adaptation of the psychological thriller visual novel. College student Sigma wakes in an unfamiliar facility with eight strangers, his last memory a kidnapping. Their captor forces them to play the "Nonary Game," a deadly contest where trust becomes a weapon and betrayal the only survival strategy. As the players navigate impossible choices, paranoia sets in—one of them may be the mastermind orchestrating the entire nightmare. Sigma must decide whom to trust while unraveling the truth behind his abduction, knowing that a single wrong choice could mean death for everyone trapped inside.