1) Demon-slaying video game 2) Devil, to Dominicans 3) Infierno resident 4) Mac OS game 5) Mexican underworld boss 6) Mountain range of California 7) River in Chile 8) River in South America 9) River in The Americas 10) River of Chile 11) River of South America 12) River in The New World 13) River of The Americas Found on https://www.crosswordclues.com/clue/diablo
USS Diablo was an American Corsair Class submarine of 1570 tons displacement launched in 1944. The USS Diablo was armed with one 5 inch gun; two 40 mm anti-aircraft guns and ten 21 inch torpedo tubes. Found on http://www.probertencyclopaedia.com/browse/RD.HTM