Half-Life 2: Episode Two Price History. $7.99: $7.99: $0.79: current price highest price lowest price; Price Charts. All time on the site, except for the charts, is Half-Life: Prospekt is a science fiction first person shooter created by Richard Seabrook and released on February 18th, 2016 following a two year development period. The game gathered mixed reviews. It runs on the Source engine. "Prospekt begins in the Nova Prospekt prison in the Half-Life universe. Gordon is slowly being overrun by soldiers in the prison, however unknown to him his Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival. Price history Charts App info Packages 11 DLCs 2 Depots 6 Head over to one of the trusted game stores from our price comparison and buy cd key at the best price. Use the indicated client to activate key and download and play your game. Current Prices. Historical Low. Official Stores: $3.94. Keyshops: ~$1.78 Best deal. Subscriptions: Offers. The stablest artificial isotope is indium-111, with a half-life of approximately 2.8 days. All other isotopes have half-lives shorter than 5 hours. Indium also has 47 meta states, among which indium-114m1 (half-life about 49.51 days) is the most stable, more stable than the ground state of any indium isotope other than the primordial. Valve has released a 25th anniversary update for Half-Life that packs a lot of new content and quality-of-life changes, as well as support for the company's popular Steam Deck handheld console. If According to GameSpy, Half-Life was the most played online PC game (excluding MMORPGs) as of September 2008, ahead of Half-Life 2. In celebration of the game's 10th anniversary, Valve lowered the price of Half-Life from $9.99 USD to $0.98 on November 19, 2008 for three days. Price Discount; Winter Sale 2020: Dec 22, 2020: $1.59-80%: Autumn Sale 2020: Nov 25, 2020: Half-Life: Source is a digitally remastered version of the critically acclaimed and best selling PC game, enhanced via Source technology to include physics simulation, enhanced effects, and more. Price history Charts App info Packages 53 DLCs 1 Depots 22 Configuration Cloud saves Screenshots Related apps Update history. Due to Half-Life's huge success on the PC, it was then ported to the PlayStation 2 on October 29, 2001 by Gearbox Software. When Half-Life 2 was released on November 16, 2004, a Source version of Half-Life was also included. Half-Life: Source included the Havok physics system, dynamic lighting, new shaders, and improved A.I. Scle.