Counter-Strike: Global Offensive (CS: GO) expands upon the team-based action gameplay that it pioneered when it was launched 19 years ago. CS: GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

Lethal League is a competitive projectile fighting game where you have to hit an anti-gravity ball into the face of your opponent to win. The ball speeds up with every strike, up to explosively extreme velocities. Play intense local matches with friends and foes, challenge yourself in the singleplayer mode or battle it out online.

Take to the battlefield with Wargroove, a strategy game for up to 4 players! Choose your Commander and wage turn-based war on battling factions. Design and share maps, cut-scenes and campaigns with easy-to-use editors and in-depth customization tools!

The desperate leadership of a doomed Soviet Union travels back in time to change history and restore the glory of Mother Russia. The time travel mission goes awry, creating an alternate timeline where technology has followed an entirely different evolution, a new superpower has been thrust on to the world stage, and World War III is...

Travel the globe and track your targets across exotic sandbox locations in HITMAN™ 2. From sun-drenched streets to dark and dangerous rainforests, nowhere is safe from the world’s most creative assassin, Agent 47 in the ultimate spy thriller story.

Hunt: Showdown is a thrilling, high-stakes PvPvE first-person shooter. Take down nightmarish monsters, as you compete for the bounties that will bring you glory, gear, and gold in this unforgiving – and unforgettable - online multiplayer experience.

Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!

The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike.

Microsoft Studios brings you three epic Age of Empires III games in one monumental collection for the first time.

Experience epic, free-to-play naval combat when you helm one of over 350 historic vessels in the exciting balance of strategy and real-time combat that World of Warships offers. Outfit your fleet with flags, camouflages, modifications, talented Commanders, and more!

Run up the score in a relaxed slugfest or push the limits of your reflexes in this refined baseball simulator. The third entry in the series features all-new Franchise and Online Leagues modes, major graphical enhancements, and on-field additions including pickoffs and situational player traits.

Hidden in the towering Himalayas lies Kyrat, a country steeped in tradition and violence. You are Ajay Ghale. Traveling to Kyrat to fulfill your mother’s dying wish, you find yourself caught up in a civil war to overthrow the oppressive regime of dictator Pagan Min.

Valve's WWII Multiplayer Classic - Now available for Mac.

Three years after the Purity Wars, Nortander is on the cusp of a new era.

A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below.

Powered by id’s revolutionary id Tech® 5 technology, RAGE is an intense first-person shooter with breakneck vehicle combat, an expansive world to explore, and jaw-dropping graphics!

Ten years on from Worms™ Armageddon and the turn-based comic mayhem continues in Worms™ Reloaded, an all-new edition available for PC through Steam.

For The King is a strategic RPG that blends tabletop and roguelike elements in a challenging adventure that spans the realms. Set off on a single player experience or play cooperatively both online and locally.

PAYDAY 2 is an action-packed, four-player co-op shooter that once again lets gamers don the masks of the original PAYDAY crew - Dallas, Hoxton, Wolf and Chains - as they descend on Washington DC for an epic crime spree.