Been wanting to try your game and just now got around to it. Another fellow RPG Maker :-) Love to see a game doing so well using this engine. This was designed very well! Congrats! Here's my feedback:
OVERALL FUN:
1. I enjoyed your game. I'm a huge fan of Greek mythology, and the 8-bit look, retro music, and theme took me back to the NES game Battle of Olympus. Though that was a 2D platformer... your game still reminded me of it. Which is a good thing. :-)
2. I really enjoyed your game. Combat was fun, exploring great, and the story was interesting.
ART/GRAPHICS:
1. This isn't your fault. The older RPG Maker engines were horrible with this, but I don't think many players will take steps to install the recommended font. I mean... I started the game and was like... nah, I want to play. I'll use the default font. I wish earlier RPG Maker engines didn't make us do this.
2. I love, love, love the artwork! The sprites are nice, tileset is great, monster artwork fantastic, and I love the green aesthetic of the game. Everything looks excellent and meshes well together.
CONTROLS/UI:
1. Easy to understand controls, but players new to these games might need help. Especially since non-RPG Maker players won't realize arrow keys move, space interacts, etc. I get the same feedback... people want WASD movements, etc. So maybe just a quick controls pop-up for them at the beginning?
2. I'm not too fond of front-view combat... but it works in your game, and you had some nice animations; monsters look good, and the easy-to-read damage that floated up was a nice addition. Bravo for making me enjoy forward-facing combat LOL
3. Fantastic window skin, menu screen and the bestiary looks great!
SOUND/MUSIC:
1. Great 8-bit-sounding music. Combat music is really nice.
A FEW GRIPES:
1. Sneak shot says it costs life but doesn't say how much. Then there's a 0 next to the skill, which makes me believe it costs 0 life, but then I lose 2 when I use it. Knowing the engine... it's showing it costs 0 MP... so maybe put in the skill description that it costs 2 life? This is slightly confusing and misleading to players.
2. Also... I didn't understand the difference between Sneak Shot (costs 2 life) and dealt 2 damage and my Basic Attack, which dealt 2 damage but cost no life. I felt Sneak Shot should do more damage or apply a state to the enemy. It didn't seem worth using.
3. This is partly my fault because I forgot to save, but when I started the game... I went through Delphi, left the town, fought a few monsters, got a slime, and then you did the infamous "Another slime appears." How dare you! LOL I died, though. I was annoyed because I had to start completely over. You should consider an autosave... or a forced save at the beginning. That way, players are reminded to save once they get through that intro. If they die, they don't have to repeat that opening story, dialogue, and all those choices. Again... my fault for not manually saving, but I could see this being an annoyance for many starting players. Especially if they don't know they must manually save through the menu screen.