A screengrab from the computer game "The Slaying of Sandy Hook Elementary School."

A new computer game that allows players to reenact last year's massacre at Sandy Hook Elementary School is drawing sharp criticism.

The game, titled "The Slaying of Sandy Hook Elementary School," takes users through gunman Adam Lanza's home in Newtown, Conn., instructing them to "shoot mother" and "get AR15 and clips."

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Players then move a virtual gunman through the halls of Sandy Hook, using a weapon to fire at teachers and students.

Lanza gunned down his mother before killing 20 first-graders and six teachers at the school on Dec. 14, 2012.

He then took his own life.

The family of teacher Victoria Soto, who was shot dead protecting her students, denounced the game on Twitter Tuesday night.

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“Please tell us how playing a game that recreates how Vicki died would be beneficial? Please tell us,” a family-endorsed account said in a tweet to game creator Ryan Jake Lambourn, a Houston native who says he now lives in Sydney, Australia.

Lambourn has defended the game online, saying it was intended to promote gun control.

"Here we are nearly a year after the Sandy Hook shootings in which 26 people were killed and absolutely nothing positive has come out of it," he tweeted.

The game has since been removed from at least one site on which it was available.

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