Well, this was unexpected! Today's Xbox Games Showcase Extended 2023 event featured well over 10 Xbox Game Pass titles in all, the vast majority of which have never been confirmed for the service in any capacity before!

We'll throw the complete list of Xbox Game Pass titles from the Extended Xbox Showcase below:

The Bookwalker: Thief Of Tales (June 22, 2023)

"The Bookwalker is a narrative adventure in which you play as Etienne Quist, a writer-turned-thief with the ability to dive into books. Use your powers to journey between reality and book worlds, and steal legendary items like Thor's Hammer and Excalibur to restore your ability to write."

Techtonica (July 18, 2023)

"Techtonica is a first-person factory-building game set below the surface of an alien planet within a network of caverns teeming with bioluminescent life. Players will explore a vast network of caves beneath the surface of an alien planet as they work alone or with friends to build and optimize complex, automated factories, gather resources, establish a base of operations, and uncover the secrets buried in Techtonica.

The Wandering Village (July 20, 2023)

"The Wandering Village, a city-building simulation game on the back of a giant, wandering creature is finally coming to Xbox Game Preview and Xbox Game Pass. Build your settlement and form a symbiotic relationship with the colossus. Will you survive together in this hostile, yet beautiful post-apocalyptic world, contaminated by poisonous plants?"

Sea Of Stars (August 29, 2023)

"Sea of Stars is a turn-based RPG inspired by the classics. It tells the story of two Children of the Solstice who combine the powers of the sun and moon to perform Eclipse Magic, the only force capable of fending off the monstrous creations of the evil alchemist known as The Fleshmancer."

The Lamplighters League (October 3, 2023)

"Out October 3rd! Sneak, steal, and shoot your way through a world of pulp adventure in The Lamplighters League! Globetrot across a variety of exciting locales around the world and outwit your enemies in strategic turn-based combat - and, if you play your cards right, you might just save the world. Available Day One on Xbox and PC Game Pass, Xbox Series X|S and Cloud."

Mineko's Night Market (October 26, 2023)

"Mineko’s Night Market is a narrative-driven, social simulation adventure game that celebrates Japanese culture and invites players to craft whimsical items, eat delicious snacks, and ultimately enjoy all the cats."

Galacticare (Late 2023)

"Save the galaxy - one patient at a time! As the new director of Galacticare, you will build and manage a series of hospitals to keep your patients alive for as long as possible - for money! And also because it’s the right thing to do. Galacticare is a sci-fi hospital management game with complex mechanics and a rich narrative, releasing late 2023.

Another Crab's Treasure (Early 2024)

"In a vibrant undersea kingdom on the verge of collapse, a hermit crab embarks on a treasure hunt to buy back his repossessed shell. The second game from AGGRO CRAB."

Harold Halibut (Early 2024)

"Harold Halibut is a handmade narrative game about friendship, and life on a city-sized spaceship submerged in an alien ocean."

Lightyear Frontier (Early 2024)

"Join Sebastian, Kelly, Anita, and Carolina as they start their new homestead on the Frontier together! Throughout the day, follow along as they help each other collect resources, put down fences and buildings, and discover the hidden secrets of the planet.

Go Mecha Ball (2024)

"Explore and conquer four distinct worlds filled with a dizzying array of rampaging robots, massive bosses and tools and obstacles straight out of a pinball table! Boost up ramps to soar above the fray and deliver death from above, launch yourself off bouncy bumpers or catch an updraft off a giant fan."

Little Kitty Big City (2024)

"You're a curious little kitty with a big personality, on an adventure to find your way back home. Explore the city, make new friends with stray animals, wear delightful hats, and leave more than a little chaos in your wake. After all, isn't that what cats do best?"

Neon White (TBD)

"Neon White is a lightning fast first-person action game about exterminating demons in Heaven. You are White, an assassin handpicked from Hell to compete with other demon slayers for a chance to live permanently in Heaven. The other assassins seem familiar, though…

What a selection! Which of these are you excited for on Xbox Game Pass? Tell us in the comments below.