DRG has some of the most thought-out, put together and balanced mechanics I've ever seen in a video game.
I love the fact that literally every weapon upgrade is a buff to your weapon and makes life squishing bugs that much easier.

There is no such thing as a bad upgrade (except for bouncing nuclear grenades, let's not talk about them); and the Overclocks (special unique changes for weapons that you can unlock) change the way you play with a weapon entirely.
I'm amazed as to how every weapon (including the 4 new ones added for FREE) are perfectly balanced and fit right into the game.

Normally the rinse-and-repeat nature of these types of games gets extremely stale but somehow Ghost Ship Games have made a masterpiece that never gets dull. This type of game genre isn't for everyone, but even if you don't like Co-op games (there is a Solo mode which works wonderfully!) I highly recommend you pick up this beaut' of a game and give it a shot.

Update: The lastest November update has brought in so many QoL features that if I could kiss these devs I would