Omar, also known by his developer alias OA3Games, is a game developer best known for creating the Five Nights at Leon's series, a fan-made game inspired by the Five Nights at Freddy’s franchise.

Omar first became a fan of Five Nights at Freddy’s in 2015 and, after playing the popular fan game Five Nights at Candy’s, he was inspired to create his own. He joined Game Jolt on March 15, 2017, and just five days later, on March 20, 2017, released the first installment of Five Nights at Leon's.