Counter-Strike is a popular video game that modifies the multiplayer aspects of Half-Life, making it more team-oriented and providing players with an experience similar to what a real counter-terrorist or terrorist unit would go through. Players join either the Counter Terrorist team or the Terrorist team as they battle against each other in various mission scenarios. The goal of each round is to eliminate all opposing forces or complete objectives while also managing resources such as ammunition, money and health. With its fast pace and intense gameplay, Counter Strike has become one of the most popular online games today.

Overwatch is a fast-paced team-based shooter set in the near future on Earth. Players take control of a diverse cast of characters, including soldiers, mercenaries, scientists, adventurers and others in an epic conflict spanning the globe. Each match is an intense multiplayer showdown that requires players to work together to achieve victory.

Counter-Strike: Global Offensive is a popular first-person shooter video game released in 2012. It is the fourth installment of the Counter-Strike franchise and builds upon its predecessor by introducing new maps, characters, weapons, and updated versions of classic CS content. The game has become one of the most popular online shooters with millions of players around the world competing in different game modes such as competitive ranked matches or casual ‘deathmatch’ style games. Players can choose from a variety of weapons to customize their loadouts for each match and use tactics to outsmart their opponents in order to win rounds.

Left 4 Dead is a co-operative multiplayer action game from Turtle Rock Studios, the creators of Counter-Strike. The game takes place in an apocalyptic world where a highly virulent strain of rabies has spread quickly through the human population, turning those infected into violent psychopaths. Players are among the few seemingly immune to this virus and must fight their way to safety or die alone alongside other Survivors. Left 4 Dead is built with version 2 of Turtle Rock's advanced A.I technology and runs on Source Engine for enhanced visuals and gameplay experience. In Left 4 Dead, players will have to work together if they want any chance at survival in this chaotic post-apocalyptic world.

Counter-Strike: Source is a popular video game from Valve that uses the Source engine. It has recreated maps from Counter-Strike 1.6, such as Office, Havana, Italy, Aztec, Chateau and more with new textures and improved buildings and scenery. Objects in these levels react realistically to the physics engine of the Source engine. The game can be downloaded through Valve's Steam service with Half-Life 2 included in the package.

Apex Legends is a free-to-play Battle Royale shooter where players team up in squads to battle for fame and fortune. Players can choose from an ever-growing roster of diverse characters, each with their own powerful abilities. Apex Legends introduces new tactical squad play as well as innovative features, creating a unique and intense Battle Royale experience set within a rugged world. Conquer with character in Apex Legends!

Day of Defeat is the latest online action experience from Valve, makers of Half-Life and Counter Strike. Set in WWII's European theater of war, players join an elite military squad to battle as a unit for victory. There are 10 new multiplayer maps with 15 total available for play, featuring authentic weaponry and various modes. New features include character models/animations, increased textures, particle effects and even a British soldier class option. Players can take on the role of snipers, infantry, machine gunner or rifleman to achieve success in this immersive first person shooter game.

Day of Defeat: Source is a multiplayer, team-based game set in the WWII European theatre of operations. Players select roles and complete missions based on historical events. The game has been upgraded with Valve's advanced engine technology, Source, which was created for Half-Life 2. This improved graphics feature includes support for HDR lighting and optimized versions of popular maps as well as redesigned sound and new player, weapon and world models. Other features include integrated physics simulation for ragdolls and physically simulated objects; higher resolution textures; bump mapping; specular lighting; completely redesigned user interface; all new voice, weapon and ambient sounds - all powered by advanced Source engine technology.