So here is a list of the top Sellers from steam, as well as a short blurb about each game:

Rocket League - Imagine Soccer, but with rocket powered cars. It is a very fun multi-player focused game. Matches are 5 minutes barring any overtime, and it features a couple extras such as basketball and hockey. It also has local and online play as well as controller support.

Planet Coaster Claimed as the true spiritual successor to Roller Coaster Tycoon 3, as it has been developed by the same developers of the aforementioned game. It is a park simulation game that allows users to create and manage their own theme parks. It also features steam workshop support to import your own or download other peoples creations.

Battlerite - An arena-style team focused brawler. If you are familiar with DOTA or League of Legends, then you should feel right at home with this game. It was on sale for 25% last weekend, as well as had a free trial (ends at 10am PST today)

Watch Dogs 2 the sequel to Ubisoft's Watch Dogs. Hack your way into many forms of mischief in an open world. This game also features co-op and adversarial modes.

Euro Truck Simulator 2 DLC; Viva La FranceReleased just today, this is an addition to the highly rated Euro Truck Simulator. This expansion opens up the country of France. You can deliver to/from, as well as explore the countryside. There is also a detailed Paris map for you to view as well, this does require Euro Truck Simulator 2 to play.

Civilazation 6 The follow-up to the highly acclaimed Civilization 5. It is a turn based strategy game focused on building your empire from the stone ages to launching nukes at Ghandi and building a rocket ship. This game is known to make you say one more turn, and then 6 hours and 50 turns later, you won't even realize that time had passed.

Steep This is a skiing action game that is focused on exploring the mountains. You can ski, snowboard, paraglide, or wingsuit through the snowy landscapes. While this may not be as arcade-like as the other skiing games, fans of SSX may want to check this one out. This does also feature partial online multiplayer.

Space Hulk:Deathwing Based off of the Warhammer 40,000 lore, it is a first person shooter. The trailers give a very left for dead vibe to it, as you are blasting countless monstrosities. This game also features online co-op, and is out on the 9th of December.

The Elder Scrolls V:Special Edition An overhaul of the same game 5 years ago. This features updated graphics, all of the DLC, and feels much more stable than the original. Most of the original mods are compatible although there does seem to be some slight fixes a lot of authors need to make.

Total War: Warhammer - Realm of the Wood Elves A DLC to the Total War: Warhammer series, This unlocks the Wood Elves race to play as, it features a campaign map and story specific to the Wood Elf race. It does require the original game to play. This is released on December 8, and is currently 10% off until the 8th.

EDIT: Formatting