Warframe

Warframe is a free-to-play cooperative third person shooter who's playable characters can best be described as "Killer Space Ninjas with Guns". While this may feel like another shooter that doesn't have background, I can assure you that it is not. Instead, it is one of those shooters that has a lot of background that you don't really have to pay attention to in order to play. While this game is classified as a third person shooter it also focuses a lot on melee, although they have utterly ruined it in update 11 when they removed stagger from melee attacks. I will talk about their little shortcoming later.
      As I said, this is a hack and slash shooter, and it has the guns and knives (and swords and scythes and whips ect.) to prove it. They have a ton of ranged weaponry that can help in any situation, such as: shotguns, marksman rifles, assault rifles, lasers, sniper rifles, flamethrowers, and acid spewing... things. So, while you may be facing a copious amount of practical problems, you will adopt one saying, "I have a gun for that". Also, when you are not running on a wall towards enemies duel wielding SMGs, you have your melee weapons: which range from swords, duel swords, knives, whips, hatchets, really big swords, and your fist.
      But while you can have a ton of weapons, there is not a whole lot of aesthetic customization. You can change the color of your warframe and maybe the helmet, but you cannot have a space ninja running around with a trench coat, cowboy hat and a white mask. There are sixteen warframes to choose from, each warframe has its own special ability and stats. Some warframes can turn invisible, some can be invincible, and some can punch the very soul out of a enemy, each has its own strengths and weaknesses, so choosing one depends on your fighting style. In Warframe you can level up your gear by using it on mission, leveling up gear unlocks power so that you can equip mods on said gear. Mods can be found in missions and there are several different mods that can increase weapon fire rate, weapon damage, and reload speed. Earlier I might have mentioned that they ruined the melee system in Warframe, and I believe they have. since update 11 your melee weapon no longer has stagger, which means that enemies can attack you AS you are hitting them with your melee weapon. This makes melee fights a game of "who has the best shields", and when you get to higher level enemies you will start to lose. However this is a recent update and they may yet fix it. But while I was complaining about the melee system I forgot to point out the biggest problem with Warframe, the grinding. While Warframe has a ton of cool weapons and playable characters, there's really no use for them. You keep playing the same levels over and over to get a new gun, and then you use that gun to play the same levels over and over again. There's no big objective, and there's no point in grinding away to get something new just so you can use it to do the same thing you were doing without it. So, Warframe is pretty fun, until you get 20 missions in and realize you are doing the same thing you were 20 missions ago.