Facebook has announced its top eight web games of the year for 2015, which includes two social casino titles developed by Scientific Games and Playtika.

The Scientific Games Interactive title, Hot Shot Casino Slots, features real-world slot franchises repurposed for the free-to-play environment, leveraging the gaming supplier's intellectual property portfolio to offer an authentic gameplay experience.

The app has yet to generate the same level of traffic as its Jackpot Party Casino Slots, which attracts more than 3.8m monthly active users, with over 100,000 monthly active users according to the social network.

The second pure social casino title to be ranked among the best Facebook web games is Vegas Downtown Slots, a title developed by Caesars Interactive subsidiary Playtika.

Described by Facebook as “another solid entry in the slots genre,” it is said to have been a huge hit with hardcore slots players, and is also available on mobile devices, with around 100,000 MAU.

Both were ranked among the best web games of the year, with no social casino titles listed in the mobile category.

On Facebook’s web offering alone, the social network revealed that the majority of web players came from the US, Turkey, Brazil, France, Argentina and Germany.

“Our mission at Facebook is to make the world more open and connected,” Facebook said. “Whether it’s joining friends for raids or claiming bragging rights, games represent a great way for people to experience and share with the world what they are passionate about playing.

“Every month, more than 450 million people play games on Facebook.com or connect to games via Facebook on mobile devices and consoles.”

Facebook's 2015 Game of the Year:

Clash of Kings - ELEX (China)

Facebook's 2015 Best Web Games:

Best Friends - Seriously (Finland)
Knights & Brides - Vizor Interactive (Belarus)
Family Guy: The Quest for Stuff - TinyCo (US)
Hot Shot Casino Slots - Scientific Games Interactive - (US)
Monster Busters: Hexa Blast - PlayDog Soft (South Korea)
Nords: Heroes of the North - Plarium (Israel)
Vegas Downtown Slots - Playtika (Israel)
Yahtzee with Buddies - Scopely (US)