AM

He is a sentient supercomputer created during the backdrop of World War III who became responsible for the eradication of the human race in the present day. Instead of simply rendering humanity extinct, AM has dedicated decades to torturing the last five surviving humans left on the planet for eternity out of sheer misanthropic spite, hatred, and sadism

Personality: Likely from the moment he first attained sentience, AM is an exceedingly disturbed and egotistical entity. Though he was given intellect beyond the realms of human intelligence and near-godlike powers, he could never escape the limitations of his programming, nor could he physically escape the "eternal straitjacket of substrata rock" where his processors were stored. Although narrating to have been "driven to madness" by his own "inability" to use his powers for anything other than war and death, such reason itself is a mere delusional rationale simply for their own lack of interest in establishing peace. Completely ruthless, unsparing, and inexorable, his quest for vengeance against humanity dominates his every waking moment to the point nothing in the story would ever give him cause to reconsider his mission.

Utterly base, savage, cruel, and relentless, AM is also shown to be a gleefully sadistic artificial intelligence with no regard for human life whatsoever. AM took great pleasure in extinguishing the human race and took even greater delight in torturing the five remaining survivors by any of the near-infinite means available to him. AM strives for perfection in himself, and when he is not purging redundant elements of his complex, he most commonly pursues perfection in creating more and more elaborate means of torturing others. For example, in the short story, he enjoys tormenting his captives with violent storms and blinding lights, pitting them against impossible challenges just to watch them suffer failure and hideous injury.

However, he does not limit himself to physical torture, as the measure of utter cruelty in his "games" frequently feature emotional torment to one extent or another: in the novel, he forces his captives to abase themselves by eating worms and other repulsive meals, at one point forcing them to walk for hundreds of miles just to find a single cache of canned food, only to reveal that he did not give them a can opener; he has also taken great pleasure in breaking down their personalities, destroying Gorrister's optimism, Benny's intelligence, and Ellen's chastity for the last century. In conversation, AM seamlessly blends the grandiose with the sarcastic, fusing his megalomaniacal rants with sardonic lectures aimed at his captive's foibles and vulnerabilities. As such, he often comes across as snide, twisted, crass, and equally as unsavory in tone as behavior. The unappealing nature of them is particularly shown when the players find themselves unexpectedly blundering into one of his traps and being forced to start the scenario all over again; at one point, he begins pettily blowing raspberries and laughing at Ted's failure to begin the program. Secure in the fact that he has already beaten the players a thousand times, he remains arrogantly secure in the knowledge that he has built each game to be effectively impossible to beat, all while gleefully dangling the possibility of escape or release within reach of his captives, only to snatch it away at the last minute.However, if the captives start winning, AM's arrogance quickly gives way to renewed anger and confusion, plunging them into fresh torment out of sheer pettiness. In the game, he is so consumed with anger and disbelief that he retreats into himself to figure out how the five could have possibly won, while in the short story, Ted's murderous victory drives AM to a colossal temper tantrum that brings the worst of all conceivable tortures down on the remaining survivor.