Black Mesa is a re-envisioning of Valve Software's classic game Half-Life. Players will experience the journey of Gordon Freeman through the Black Mesa Research Facility with enhanced visuals, music, voice acting and dialogue for an immersive experience. There are detailed environments to explore as well as a large cast of characters and experimental weaponry to use in this updated version of Half-Life.

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.

The Stanley Parable HD Remix is an updated version of the popular Half-Life 2 mod The Stanley Parable. It is a first person exploration game that allows players to experience both freedom and structure as they play through Stanley's story - or lack thereof. Players will be presented with choices throughout their journey, but ultimately it is up to them how they want to progress and if they ever reach the end of the game. With its unique approach to storytelling and choice, The Stanley Parable offers a truly unique gaming experience.

Natural Selection 2 is a stand-alone video game available through Steam that is a revamped version of the Half-Life mod. The game features two unique sides, alien and marine, each with their own strengths and weaknesses. Players can customize their characters to suit their playstyle or join one of several premade classes. Natural Selection 2 also includes a variety of maps that are designed for intense 5v5 battles between the two opposing teams. The game has been praised for its focus on teamplay and strategy, as well as its excellent visuals and sound design.

Insurgency is an intense, multiplayer and cooperative Source Engine based video game. Players take to the streets for close quarters combat as they battle in teams to secure crucial strongholds and destroy enemy supply. It is a follow-up game to the award-winning Source mod that strikes a balance between one-life gameplay and prolonged action. The game is highly competitive with unforgivingly lethal consequences.

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.

Dear Esther is a first-person narrative video game that focuses on exploration and uncovering the mystery of an isolated island, as well as who the player character is and why they are there. As players explore different locations around the island, they will be provided with random fragments of story to piece together in order to progress through the game. Each journey through Dear Esther will be a unique experience for each individual player.

Alien Swarm is a free video game that combines cooperative play and squad-level tactics in an epic bug hunt. Players form squads of four IAF Marine classes, and use unlockable weapons with different loadout configurations to fight a variety of aliens. They must battle through environments like icy planets and lava-flooded mining facilities to eradicate the alien infestation. Along with the game comes access to the complete code base for Alien Swarm, which has updates to the Source engine as well as 3rd person camera, depth of field, improved dynamic shadows and other gameplay additions.

Red Orchestra: Ostfront 41-45 is a WWII first-person multi-player combat video game. Players can fight alongside their compatriots on the most inhospitable environments of the Eastern Front and experience some of the most intense combat of the war. They have access to a wide range of infantry weapons, as well as armored vehicles such as half-tracks and heavy tanks like the German Tiger or Soviet IS-2. In addition, players can call in artillery strikes from an officer with a radio for extra firepower when needed. With its realistic graphics and gameplay, Red Orchestra: Ostfront 41-45 provides an immersive experience for those looking to explore this crucial period in world history.

Damnation is a video game that challenges players with frenetic combat and daredevil acrobatics set in post-industrial landscapes inspired by iconic elements of American history. Players battle an unstoppable arms dealer to prevent world domination, choosing their own paths through levels lasting up to three hours each. Along the way, they must outsmart intelligent enemies while using vehicles such as motorbikes and armour-piercing marvels for more powerful attacks. The story follows hero character Rourke as part of an ensemble cast involved in intricate plotlines. Multiplayer options also exist, taking advantage of the expansive game environments.