With strong influences from the Bay Area Thrash, Slayground was formed in mid 2009 with Camilo Ramirez (Guitar), Esteban Centurion (guitar), his brother Eduardo Centurion (Drums), Juan Godoy (Bass) and Gustavo Rivas (vocals).

Rehearsals started with a few songs already written and on October 17 happens Slayground's debut at Zapada Under II along with 220 Voltios, Toxina Alcoholica, Evil Force, The Axe, Rockolla and Sucios & Desprolijos. In April 2010 the band participates in the 2nd. Edition of the "Tribute to the history of Rock in Py" honoring the occasion to Corrosion and Otherwise, two great bands from Paraguay, all the songs covered that night were recorded and released free by the Lopez Brothers (event organizers). The following month Slayground tributed Slayer playing as the opening act in Absoluto Rock.

On May 22, 2010 The bands Massive Execution, The Axe and Slayground recorded at Las Palmeras Records a 3-way split called "Paraguay Thrash Attack" with 3 songs each. On January 7, 2011 Slayground recorded the first official demo "Wake Up Evil Dead" at 340Studios in a 3 hour lightning session and was released the next day at the "To the Metal" show held in Ciudad del Este (Paraguay).

On May 21 of the same year the band participated in the concert "Bicentenario Metal Fest", when the lead singer Gustavo Rivas announced his separation from the band due to particular projects that would leave little room for Slayground, after this event Camilo Ramirez assumes vocals in addition to guitar. The band is still active as a four piece band devastating with a furious thrash metal.

Slayground has released their first album "Critical Thinking" on March 29, 2014 containing 11 tracks of pure old school thrash metal.