Alterium Shift is an in-development indie RPG styled like JRPG classics including inspiration from Chrono Trigger and FFVI.
"In this game you will experience a story rich, living world, where choices and interactions matter! You’ll journey with three heroes in training; Pyra, Atlas, and Sage. Their teacher, the war hero Dolion, strives to mold his students into heroes, ones better than himself. You start the game with the three heroes taking their final test before being sent off on an important and life changing mission. What fate awaits these heroes and can they accomplish the tasks set forth before them?"
An actual release is still a while away, with their current target being December 2022. The developer confirmed on Twitter their plan for Linux support.