Evil Quest is more or less a homage to the classic NES game Crystalis. I'm sure this little nugget of info has been mentioned by many other reviewers, all the same it's worth mentioning.
Homages are a mixed bag. This is how they usually end up: "Wow! This reminds me of my favorite game...except worse." Evil Quest isn't as good a game as Crystalis, but it's still okay. Evil Quest is about Galvis. What does he want to do tonight? He wants to destroy the world. He kills everyone that stands in his way, and even murders anyone that annoys him. Like any other villain, this guy also talks too dang much. While I can't imagine a mute evil-protagonist working out, by the end of the game I was sick to death of Galvis and his speeches.
As with most action-RPGs, Galvis starts with a pitiful knife and dirty rags, and his enemies are mere rats and low-ranking grunts. By the end of the game he's wielding the legendary chaos axe and slaying dragons & demons with no trouble. Getting to that point involves the typical town -> overworld -> dungeon progression. The dungeons are standard stuff, lots of respawning enemies, some treasure, sometimes a puzzle or two. It's nothing really involving, but I guess that's to be expected from a game that harkens back to simpler times.
The only bothersome aspect is that with every level-up, you're given points to distribute. Having stats for HP and DEF seems a bit superfluous, especially on hard difficulty where everyone hits like a truck. Boosting STR and MAG is more effective, mainly because the faster you can kill something, the less chance they have of damaging you. Plus if you want all the achievements you have to focus on two attributes (this will take two play-throughs), because the level-cap will keep you from maxing out all four.
This game can be really easy, with much of the difficulty being player-imposed. By this I mean you have things on harder on yourself (don't buy healing spells, don't use potions, etc) to remain challenged. However, the final bosses have some cheap attacks that are nearly impossible to dodge, so it's probably not the best idea. A sequel is in the works so the issues involving difficulty should get ironed out.
What I'd really like to see out of the sequel to Evil Quest is A) better art-direction B) better plot C) a more involving quest. An old-school bum like myself probably shouldn't care about A or B but they along with C are why I consider Crystalis the better game (well, all that and better difficulty balance). Evil Quest was originally an Xbox Live Indie Game and it shows. The sprite-work is serviceable but not in any way unique, and just looks really banal.
C gets it's own paragraph because it's the most important of the three. A good quest isn't just finding powerful weapons and killing massive enemies. Crystalis gets a lot of credit for changing things up beyond "kill monsters & get money". In one area you could ride around on a dolphin, there was a town run entirely by women, and you had to use a metamorphis spell to talk to their queen, there was also a zombie-infested town, and so on. In a lot of ways Evil Quest is too similar to traditional action-RPGs, which results in missed opportunities.
There aren't many games where you play somebody who is actually evil. It seems like there would be a lot of cool methods to progress the plot, like using sabotage, threats, murder, etc. Take Kefka from FF6 for example, imagine playing as him. At one point you poison the kingdom of Doma, later on you assist the emperor in fooling the resistance, then not long after that stab the Emperor in the back and take all of the god-like power for yourself. The rest of the game could be spent trying to stay one step ahead of the heroes, slowly picking them off one by one (or in parties).
All that said, it's not really a huge deal. As a homage throwback whateveryoucallit title, Evil Quest is solid. It has the basics down, and a sequel could turn out to be pretty spectacular with enough creativity injected into it.