Georgia State scored to close within 10 and was driving midway through the final quarter when Junior Gnonkonde sacked Conner Manning, causing a fumble. Troy's Baron Poole fell on the loose ball to stop the Panthers.
Silvers threw for 235 yards with one interception. Deondre Douglas grabbed six passes for 97 yards and one touchdown and Jordan Chunn rushed for 91 yards and a score.
Troy (5-1 3-0 Sun Belt), which opened conference play 3-0 for the first time since 2010, was trailing 14-6 midway in the third quarter. The Trojans pulled away to a 31-14 lead with 9:14 left in the game.