I typically detest open world games, but I finally finished the game.
A few things that are remarkable about this one:
1) The armor system is fantastic. Not only is the armor actually well researched to the point where it looks the part of real armor, it interacts with many of the systems and skills in the game.
2) The environment appears to be entirely handcrafted. Each chest, camp, valley, hill, trill, bridge, stream, easter egg, etc. It is a joy to look at and explore, and it helps with the tedium. The game also gives great credit to CryEngine. It's very pretty. Riding horses through handmade valleys and pastoral landscapes is pleasant.
The process of acquiring and equipping armor was much more interesting than any other game that I've played. You begin the game with clothing, and upgrade to a simple gambeson and open bascinet, then add chainmail, vambraces, boots, and eventually mail chausses and plate chausses. Eventually, I added an external arming doublet to give two layers of blunt force protection.
It also has a very good integration with the stealth system and the speech system. Armor has an obvious effect on how you look, how conspicuous/visible you are, and how much noise you make, and the more protective helmets limit your vision. The stealth system is good.
I really like how this game ended up with a more complex and interesting armor system than most games, despite not having any magic or enchantments. I have craved a game like this, a proof of concept that well researched and functional armor can lend itself fully to a complete progression system. They did a sterling job.
Shooting Cumans in the kneecap or nuts with arrows was very satisfying.
The next game should be interesting, as they picked a very good part of Czech history as the setting.
I don't know how on earth such a small team made such a game.