Lords of Xulima (LoX) is an old school CRPG influenced by the classics like Might and Magic, Wizardry and Ultima.
While ToX does contain a good amount of story and dialog, its focus is clearly on combat, exploration, and progression, similar to how Might and Magic and Wizardry games are. And I'm happy to say that it really shines in these areas.
Progression-wise, the game lets you build a party of 6, including a premade main character with a unique class. You can pick from 9 classes when making your other 5 characters, and each class offers unique abilities, strengths and weaknesses. You can definitely agonize over what the optimum party config is for hours if you are prone to that madness :).
As your characters level-up, you gain skill points that you can spend as you choose. In LoX, weapons, spells and skills like "lockpick" are all treated as "skills." The majority of skills have "levels," with different skills having different max levels. What this means is that you will probably want to focus on maxing out a few skills so that you don't gimp your characters with a bunch of weak skills as opposed to a few strong ones.
All in all, the progression system is nice because you have a lot of wiggle room in how you customize your party and each character within your party. You also unlock new skills as your characters level up, so this makes leveling pretty fun. You won't find the absolute crap-ton of skills in LoX that games like Wizardry had, but the fact that you can level up skills independently and that each skill feels pretty unique makes up for this.
As for combat, LoX has turn-based combat with the turn order displayed on the side of the screen so you can see who's going next and strategize. I was really pleasantly surprised by the combat. It is VERY challenging, and you feel like you really need to consider every action, especially early on. It's really imperative that you think about how your party is going to work together effectively if you want to succeed in combat. You absolutely need defensive characters in the front row to soak up damage, or you will find your poor fragile mage getting his or her face kicked in repeatedly.
The combat interface feels slick and snappy, and the combat graphics are very impressive for a $20 indie game. I was really impressed with the combat overall, stellar job here.
Next, the exploration aspect of the game, Exploring in LoX seems pretty good so far, the zones all seem to have interesting things to find, like puzzles, riddles and lots of loot to gather. The exploration also has an element of danger, because you never know when you're going to wander into a trap, or get ambushed by a monster that will absolutely destroy you. Make sure to save often!
If I have any gripe about exploration, it's that sometimes there are secret doors and the switches can be insanely frustrating to find, requiring you to combat over wall after wall with your mouse.
In conclusion, I would highly recommend this game to any fan old school CRPGs, or new-old-school CRPGs like Divinity:OS. It's a really quality indie-RPG that seems to be a cut above most indies. However, if you're looking for a very story-heavy experience, or you don't want a challenging game, you may want to look elsewhere.