Evowok Breeder is the hard and deranged brother of Pokemon, also taking inspiration from games such as Fallout in the way the open-ended quests are handled. You're competing in Evowok matches with the ultimate goal to get renown which is also essential to many things (being able to propose higher antes, getting proposed quests), interacting a bit with the world's own problems in the meantine.

The story and events can be very dark at times, if that's something you never like in any context then I don't recommend the game. Besides all your progress is saved and you have to live with the consequences of your choices and actions, mosf of the time losing a match doesn't matter much but losing during some specific ones may have serious consequences. You have luck points working as extra lives but it's possible to die, not directly as a result of a regular match (where one of your evowok might permanently die though) but for other reasons linked to events or quests.

Events often imply skills, skill checks and checking which evowok(s) you're currently traveling with. As a typical example and I'll try not to spoiler any other thing bandits won't bother you if you're travelling with a big (nothing to do with their level or combat efficiency, just big from what I can tell) evowok.

During fights you can target body parts with the goal to reduce specific opponents' attributes. Afflictions as well as specific efficiencies (it's not exactly fire vs ice, more like spiked shells you don't want to hurt your paws unto, being able to target it with lightning sure will be better if you can) are well thought. Anyway being well prepared for a specific match is generally the important part, as once it started there's often not much you can do to revert the odds. One feature of the game is that you're stronger against an evowok you already managed to catch and have identified, which makes it very important to try to catch every type of evowok you can. Note that you can't simply grind your way through the game as you can't challenge evowoks too much weaker than your current one.

Finally the game is very long, both because the world is huge and you really won't be able to rush through it. First you'll spend your time meeting trainers you currently can't beat (or challenge at all), will need to backtrack and take notes of what each trainer proposes to figure out whenever you'll be able to fight them with success. You're going to spend a lot of time turning around looking to find a right evowok you might need or want through random encounters, because you can catch a same evowok with no attack skill at all or another time with a very good attack skill it's also very proficient at. Finally you will also probably have to grind for money, even more if you lose ante matches and/or can't manage to increase your renown so that you can challenge characters to higher ante matches. 

I don't love everything, unlocking further parts of the world is more expensive than I'd prefer,  unlike in Pokemon I wouldn't really say they're proper dungeons in the game and overall interaction with the world via skills and items which is a strength of Pokemon isn't as good here (although the skill checks during events are cool).

In the end if you hate any dark event or can't bear any form of grinding then you will likely not like the game but overall I think it's a masterpiece and then otherwise I think you might give it a try, I'd say especially if you like hard games.