Good multiplayer games?? and name 1 steam game for buy yes or yes this sales.

I have been enjoying killing floor 2 a lot recently though might add due to playing with steam party ;p

If you don't played Armello, you need give it a try

Hunt: Showdown.

It is a very special game that makes your heart explode.

I really enjoyed playing The Division so I'm just going to recommend it. There's also a The Division 2 but the game isn't on Steam (yet).

1. It's an open world, MMO third-person shooter. Has both PvE (co-op supported) and PvP modes (restricted to specific zones), and focuses on cover-based shooting. Story-driven as well.
2. Yes, the game is great enough that Ubisoft made a sequel :)
3. No cheaters that I've encountered but the Dark Zone (PvP zone) is rife with conflict. You might want to avoid that place if you don't have a friend or friends to explore the zone with.

R6 Siege if you like FPS. I've spent hundreds of hours playing and haven't gotten bored of it like I usually do of other shooters. Not too many cheaters, I haven't ever ran into one personally actually. And it IS on sale now so.

PlayerUnknownBattleground? I still playing it :) 50% off

minecraft

killing floor 2 never fails to deliver tons of fun. and blood.

factorio is great fun as well but for multiplayer you should play with people you know. otherwise your factory can get pretty messy fast.

tropico 5 (not 6!) is big fun in multiplayer as well. however i'd recommend playing with and not against friends. it's way more fun to focus on city building than combat.

I greatly enjoy Arma 3. It is both SP & MP.

1. FP/3P milsim, but with mods you can turn it into a RPG, there is a DLC for racing go karts, exploring beautiful islands, mods galore (I have over 700 hours in-game, and have yet to touch the campaign). This is a game that you can play--depending on the settings and the mods--as a casual game, or as a near mil-sim--or anywhere in between. I highly recommend the MP mod Player Unknown's Battle Royale, the MP mission King of the Hill (KOTH), the SP mods Bounty Hunter Malden (by GrandElemental), and BRSE by gtaboncer.
2. It is an alternate future-history, but you can play mods to fight the Vietnam War, WW1 KOTH etc.
3. No official hacks or cheats. In KOTH, some players occasionally do, but when reported, they get banned, and the mod teams are good about banning cheaters. Same goes for BR.

Definetly Worms Armaggedon - never going old

Love Final Fantasy XIV, perhaps the only MMORPG now that is getting better and better every expansion instead of worse. Lots of playerbase, decent story, amazing soundtrack, veritable amount of post game content to enjoy and animeeee, what's not to love? :P

Edit: Oh forgot to mention a new expansion is looming, literally one day to go so best time to jump in now to those that are remotely interested in the game

Eh... I have a love for Dota. You might want to give it a try. It's a MOBA, so no grind. Game lasts between 30 to an hour (Usually 45 mins) It's free so give it a try.

Hackers... instantly get banned, but there are some bugs (Usually gets patched quickly)

Just don't blame me if you get addicted.

Iam mostly a coop gamer, so i mostly recommend coop games.

Insurgency Sandstorm, relatively new, is a Semi-realistic Egoshooter, it has a 8 player coop but also has competetive gamemodes with up to 32 players

Risk of rain 2, it has some comic and plain grafic, but can be fun with up to 4 players