Darksiders 3 has a surprising amount of framerate issues for a game that doesn't seem like it should be particularly demanding

Halo Reach is here! and so is Halo:MCC on PC.

OMG Reach is here for PC, I'm so happy

Everyone was waiting for Reach today but I was looking forward to playing Phoenix Point but it's not releasing today on Gamepass they tweeted out saying it will be within the next week. They either messed up with sending it for cert or an intentional delay (hopefully not ) in the hopes more people will buy it on EGS.

Shame but ok. Will wait for the X1 release as my Win 10 laptop can't run shit.

3 new games PES2020, Shinobi Striker and Overcooked 2 along with The Division retuning.

I didn't have Wandersong on my list, so 4 new games unless I missed it somehow.

Some more info on the games added to Xbox:

December 5

My Friend Pedro (ID@Xbox)
A violent ballet about friendship, imagination, and one man’s struggle to obliterate anyone in his path at the command of a conscious banana. The strategic use of split aiming, slow motion, and the stylish window breach create one sensational action sequence after another in an explosive battle through the criminal underworld.

Naruto to Boruto: Shinobi Striker
The Naruto franchise is back with a brand-new experience in Naruto to Boruto: Shiobi Striker! This new game lets gamers battle as a team of four to compete against other teams online! Shinobi Striker is built from the ground up in a completely new graphic style. Lead your team and fight online to see who the best ninjas are!

December 6

Demon’s Tilt (ID@Xbox Day One Launch)
A tribute to ‘90s video pinball games, featuring modern effects and mechanics—including bosses, secrets, and unprecedented depth to please video gamers and hardcore pinball enthusiasts alike. Now with bigger sprites, more baddies, more secrets, and more bullets! Demon’s Tilt pushes the limits of the video pinball genre with Shmup & Hack N’ Slash elements.

Wandersong (ID@Xbox Day One Launch)
A musical platforming adventure with an emotional story. Play as a silly bard and use music to interact with everything on a journey around the world. Along the way you’ll explore, solve puzzles, and meet a huge cast of characters.

December 12

eFootball PES 2020
Experience the most realistic and authentic soccer game with eFootball PES 2020! Play with the biggest teams in world soccer, featuring Spanish champions FC Barcelona, global giants Manchester United, German champions FC Bayern München, and Italian champions Juventus — featured exclusively in PES!

Overcooked! 2 (ID@Xbox)
Overcooked returns with a brand-new helping of chaotic cooking action! Journey back to the Onion Kingdom and assemble your team of chefs in classic couch co-op or online play for up to four players. Hold onto your aprons … it’s time to save the world (again!)

Pathologic 2 (ID@Xbox Day One Launch)
A narrative-driven dramatic thriller about fighting a deadly outbreak in a secluded rural town. Face the realities of a collapsing society as you make difficult choices in seemingly lose-lose situations in this groundbreaking open-world horror RPG.

Tom Clancy’s The Division
A revolutionary next-gen experience that brings the RPG into a modern military setting for the first time. In the wake of a devastating pandemic that sweeps through New York City, basic services fail one by one, and without access to food or water the city descends into chaos. As an agent of The Division, you’ll specialize, modify, and level up your gear, weapons, and skills to take back New York.

https://news.xbox.com/en-us/2019/12/04/coming-soon-xbox-game-pass-console-december-2019/

Assuming the convert gold to gamepass ultimate is still on you should do that.

Shopto.net sell 12 months of gold for £37.85. Add that to your account, then get an extra month for turning on recurring billing. Then pay £1 to upgrade to Gamepass Ultimate. For a total of £38.85 you've just got 14 months of gamepass ultimate.

Activate two 12 month codes before upgrading (and turn off recurring between activating 1st and 2nd code to get another free month) and you can get 27 months of Ultimate for £76.70

December releases for PC

Coming Soon to Xbox Game Pass for PC 

Age of Wonders: Planetfall (ID@Xbox) [already available on Game Pass for X1]
Emerge from the cosmic dark age of a fallen galactic empire to build a new future for your people in this 4X turn-based strategy game. Build your empire with one of six unique factions, ranging from the militant Vanguard to the dinosaur-riding Amazons to the cyborg-zombies of the Assembly. Fight, build, negotiate, and advance your way to utopia in a deep single-player campaign, on random skirmish maps, and against friends in multiplayer.

Demon’s Tilt (ID@Xbox Day One Launch)
A tribute to ‘90s video pinball games, Demon’s Tilt features modern effects and mechanics—including bosses, secrets, and unprecedented depth to please video gamers and hardcore pinball enthusiasts alike. Now with bigger sprites, more baddies, more secrets, and more bullets! Demon’s Tilt pushes the limits of the video pinball genre with Shmup & Hack N’ Slash elements.

Europa Universalis IV (ID@Xbox) [PC Exclusive]
Bring civilization out of the Dark Ages with this award-winning empire building simulator. Guide a nation through the years to create a dominant global empire. Rule your nation through the centuries, with unparalleled freedom, depth, and historical accuracy. True exploration, trade, warfare, and diplomacy will be brought to life in this epic title rife with rich strategic and tactical depth.

Faeria (ID@Xbox) [PC Exclusive]
Faeria endeavors to be the next generation of collectible card games (CCG). Its gameplay combines core CCG gameplay with its “Living Board” that gives players the ability to shape the battlefield as they play opening the possibilities for a wide variety of strategies and tactics. Each game of Faeria is designed to not only be unique, beautiful, and fast-paced — but also highly competitive.

Farming Simulator 17 [already available on Game Pass for X1]
Take on the role of a modern farmer and immerse yourself in a huge open world loaded with a harvest of content. Farm over hundreds of acres of land, including a detailed new North American environment. Drive over 250 farming vehicles and equipment from over 75 manufacturers, including new brands such as Challenger, Fendt, Valtra or Massey Ferguson.

Human: Fall Flat (ID@Xbox) [already available on Game Pass for X1]
A quirky, open-ended physics-based puzzle platformer set in floating dreamscapes, your goal in Human: Fall Flat is to find the exit of these surreal levels by solving puzzles with nothing but your wits. Local co-op for 2 players and up to 8 online for even more mayhem!

Metro: Last Light Redux [already available on Game Pass for X1]
It is the year 2034. Beneath the ruins of post-apocalyptic Moscow, in the tunnels of the Metro, the remnants of mankind are besieged by deadly threats from outside – and within. Play one of the finest story-driven shooters of all time. Newcomers will experience an epic post-apocalyptic adventure combining thrilling survival horror, combat and stealth, while fans will discover the unique world of Metro transformed with incredible next-generation fidelity.

My Friend Pedro (ID@Xbox)
A violent ballet about friendship, imagination, and one man’s struggle to obliterate anyone in his path at the behest of a sentient banana. The strategic use of split aiming, slow motion, and window breach create one sensational action sequence after another in an explosive battle through the violent underworld.

Pathologic 2 (ID@Xbox Day One Launch)
A narrative-driven dramatic thriller about fighting a deadly outbreak in a secluded rural town. Face the realities of a collapsing society as you make difficult choices in seemingly lose-lose situations in this groundbreaking open-world horror RPG.

https://news.xbox.com/en-us/2019/12/04/new-xbox-game-pass-pc-december-2019/

Barkley already mentioned the best option.

1. Get a gold membership (look for cheap deals)
2. turn on recurring billing - you will get an additional month
3. turn off recurring billing
4. Buy another code for gold membership (repeat steps 2-4; I think the maximum amount you can have is 36 months)
5. Convert Gold to Game Pass Ultimate for $1, €1, £1
6. Optional: Use the free 3 months Discord Nitro Deal (need to have Game Pass Ultimate), don't forget to cancel afterwards and receive 2 months Game Pass Ultimate in return!

Important: The 1:1 Gold to Game Pass Ultimate conversion for $1, €1, £1 can only be done ONCE.
Don't waste it by using a 3 months Gold code first and then convert it to GP Ultimate or by using the 3 months GP Ultimate for $1, €1, £1 offer that's going on right now. I'm not 100% sure about the conversion rate afterwards but I think it's 3 months Gold = 1 month Game Pass Ultimate.