DarkPhear

DarkPhear is a free, open-source, old-school style RPG.
Phantasy Star / Final Fantasy fans will surely enjoy it.
It was originally released for DOS, back in 2001. Now, thanks to FreeBASIC, DarkPhear is ported to Linux and Windows. This new version brings many improvements, keeping the gameplay pretty much intact.
DarkPhear includes support for mouse, joystick, language selection (Portuguese / English), sprite/pixel-based graphics, pixel scalers, turn based battles, digital sound effects, excellent music composed by Jeremy Eller, and many hours of fun.