The game was created by GSC studio on its own engine, which began development in December 2009, and it was announced that STALKER: Online will be released for 2011. And if the game came out then, the publisher would be GSC World Publishing, and the game itself would be available on social networks and powered by the Mozilla Firefox browser. Actually, the game was developed for distribution on social networks.
The current version of STALKER: Online comes with a patch that allows them to run the game as the original version “nearly didn’t work”. To run the game you need to install the old version of mySQL and Adobe Flash – for this you just need to download the old version of Firefox.
Source: Ferra
