Earth-7161 is an alternate reality in which Peter Parker never became got bitten by the spider that made him become Spider-Man.
First seen in Sensational Spider-Man (Volume 2) #41.
History[]
In this reality, shown to Peter Parker by Mephisto, Peter never got bitten by a radioactive spider, and never became Spider-Man. It is seen that while at a science exhibit, this version of Peter Parker was about to be bitten by the spider that give him spider powers. When a classmate called him over to look at something, the spider dropped and someone stepped on it.
Not becoming Spider-Man, this version of Peter Parker instead became a computer game designer. Mephisto at the time, transformed into a red headed little girl shows Peter this reality as the Earth-7161 Peter envies the hero the Earth-616 Peter Parker became as a result of his spider bite.