Even though it is currently early access, the game plays as if it is a finished product. Grim Dawn has similar gameplay to that of the Diablo series, while still having some nice, innovative ideas. The graphics are nothing out of this world, but the environment is very rich in detail. Perhaps my favorite thing about the environment in the game, is how seemlessly the world comes together. The only other game to do it as well was the original Dark Souls.
The way the class system in the game works is another great aspect. You can create some very cool classes, my mixing and matching the main four classes. Similar to "dual-speccing" in other games, but even better to where you do not need to switch specs, you just put points into both skill trees.
Some games similar to this type tend to have too much on the screen at once, and can sometimes become confusing. In Grim Dawn, the inventory system, buying and selling items, and looting are very well done. Nothing is cluttered, you even have an "auto-sort" button for when you have a full inventory.
The game manages to match, if not surpass Diablo's dark, and ominous music and environments. The story is pretty generic but is still written well. The only problem I actually seem to have with the game, was when changing some graphics options, whether it be raising or lowering the resolution, the game seemed to crash nearly every time. Simply hitting play would start the game with whatever changes you actually made. Even when the game crashes, a window actually pops up and asks you if you would like to send a report. I have never seen that in an early access game and it goes to show that they truly care about player feedback.
Even being early access, I still highly recommend this game. Particularly fans of diablo series, although most people I feel can get alot of enjoyment out of this game.