Rpg Maker MV
Final Fantasy R attempts to be a similar experience to the FF5 and FF6 Ancient Cave Rom hacks, with a much expanded dungeon. There are many levels of the dungeon to explore, as well as many bosses to defeat and random loot to collect.
Do you know Tower of Druaga? it's a very old game. Your game looks like a remake (I never played ff5 or 6)
it's a good start... but you should improve it... :/