Brandish: The Dark Revenant [USA]

Original title: ブランディッシュ～ダークレヴナント～
Genre: Top-down View Dungeon Crawling RPG
Year: English Version: January 13, 2015, Japan: March 19, 2009
Developer: Nihon Falcom
Publishers: Xseed Games, Atlus
Language: English

Description:
This is 3D remake of the 1991's game Brandish, titled Brandish: The Dark Revenant was developed and released by Nihon Falcom for the PlayStation Portable in 2009.
A long time ago, the small kingdom of Bythol (Berimya in the SNES version's English localization) was built around a lofty tower, which pierced the sky. The people of the city, guarded by a mighty Dragon, lived in peace and abundance. However, King Bistall (Berebus), the ruler of Bythol, desired to expand his kingdom and ordered the scholars to research the Tower. Soon he was brought a tome written in an ancient language. As they were deciphering the tome, some scholars feared that they might be laying their hands on the forbidden knowledge of the ancients. The tome read, "The Great Guardian of Bythol, the Dragon, and the Essence of Power lies in the top of the Tower; the one who possesses the Essence will possess all." Undaunted by these otherwise ominous words, Bythol decided to make this Essence of Power his own. He secretly organized an army which soon attacked the Tower and overwhelmed the Dragon. But as Bistall grasped at the Essence of Power, the Dragon gave up its own life to destroy it. The Essence, losing control, transformed the King into a hideous monster and sank the entire kingdom of Bythol, including the great tower, under the ground. All people on the surface forgot about Bythol and the Tower in its center, and a thousand years passed.
Source: Wikipedia

Important:
Tested also on PPSSPP v0.9.6.2