This game is like an attractive girl with some very bad habits and/or attitudes. I tried to love this game, I tried to overlook the bugs, but I can't, they are too obvious. It is a good game, but sometimes, I cannot tell if some of the stuff they have are supposed to be features or bugs. For example, enemies can move during MY turn. If I wanted my enemies to move at the same time as me, I would go back to Sins of a Solar Empire.Bugs
Another frustrating thing is that my main fleet was trapped in a star system for X amount of turns because the AI, for whatever reason, decided to send 10 individual ships to that same system and set them on blockade mode. I can only kill 1 at a time so the chances of that fleet leaving on its own was close to zero, unless I mount a rescue.Diplomacy
The diplomacy is broken beyond believe. AIs often offer star systems and resources as part of their Cease Fire agreements. However, these agreements would be undone next turn, because the systems they surrendered contain the same resources in the agreement, so they have no more resources to pay me. Another thing that is annoying is that I do not understand why "create alliance", "cease fire" and such needed to be researched. When someone is beating your @$$, you would instinctively yell 'stop', not to these advance space beings apparently.Tutorial
The tutorial is inadequate at best. After going through the whole tutorial, I still don't grasp the important points of the game such as battles and ship designs until I googled them. I figured the rest out because of my past experience with Alpha Centauri and Civ.AI
The AIs are dumb and overly aggressive. By 20-30 turns, my closest neighbour declared war on me for absolutely no reason at all. At least in AC or Civ, they would give you some sort of warning, but not Endless Space! It will f--k you when it feels like f--king you up, regardless of their capabilities. And they refuse to make peace when they just lost all their ships. Based on my reading on multiplayers, it seems that it is buggy as hell online as well. So this game doesn't have much going for it, since you can't play with the AIs and you can't play with other people.Difficulty
In Civ V, they have a nice range of difficulties, ranging from settler to deity (8 levels). In ES, they have something similar too. However, the problem is that the gaps between each is as wide as the Grand Canyon. Say, ES's normal is like Civ's Chieftain or Warlord, its hard mode is like Deity. So either the game is too easy for you to learn from, or it is so hard that you just can't survive past the 100th turn. I was either bored or frustrated.Research
Regardless of your fraction, you almost always research the same techs every time. Colonize planets, Enhances weapons, Make ships bigger, Enhances more weapons, Make ships even bigger, with the occasional resource unlocking, incoming increasing, happiness inducing tech here and there.Victory Warning
While I appreciate the game for telling me that the AIs are winning, it doesn't need to start reminding me when they are only 10-20% complete toward certain victories. A even more ridiculous example is when I am at 60% completion, they warn me of this AI who is close to winning the game at 20%. Very helpful indeed.Conclusion
I paid around $15 in Nov of 2013 for both Endless Space and Disharmony. I want my money back and I am trying to save yours here. This game is great in the sense that it is like Alpha Centauri but on a galactic scale. It's like Civ 5 with levelable heroes. The management/production system is nice. But everything else is not. The concept is great but it is very poorly executed or maintained (based on my investigation, a lot of bugs seemed to stem from Disharmony).
I have uninstalled this game after close to 100hours of play and it will take a major cleansing for me to reinstall it and give it another go. This game as it stands is worth $5 at best, anymore, you are getting ripped off. Spend your money elsewhere. Thanks for reading.Update/Sales
Jun.25, 2014 - currently at $7.49USD (75% off). Best discount I have seen since I bought the game. If this game interests you and you don't mind the bugs/features, then GO FOR IT quick. It is a good price.