( CNN ) -- Gamescom brings video game fans , developers and companies together in one place to discover what 's new , and what 's coming , in the gaming industry . Held in Cologne , Germany , the event is billed as the world 's largest trade fair for interactive games and entertainment . Boasting 275,000 visitors in its third year , the gathering , which opens Wednesday , has been a place for gaming companies to show off their new products and for fans to get their first experience with new titles . With their next-generation video game consoles scheduled for release later this year , Sony and Microsoft are expected to reveal what games can be played on the PlayStation 4 and Xbox One respectively . But there are always surprises at Gamescom , and this year will surely be no different . Sony continues to roll along after an outstanding showing at E3 in Los Angeles earlier this summer . Unveiling new games for the portable PS Vita , as well as the new PlayStation 4 , Sony also made a point of showcasing a wide variety of independent games that will be coming to the new console . The company has now announced launch dates for the PlayStation 4 -- November 15 in North America and November 29 in Europe . The new console is expected to be in 32 countries at launch . Sony also lowered the price on the PS Vita ( $ 199 ) and is making a 12GB PlayStation 3 available for a relatively meager $ 199 . Microsoft is showing off its Xbox One lineup at Gamescom , featuring 51 new games ( including 20 at console launch ) with many being exclusive titles or having exclusive content for the new home console . Attendees will have the chance for hands-on experience with `` Ryse : Son of Rome , '' `` Dead Rising 3 , '' and `` Forza Motorsport 5 '' among others . Gaming companies will be making `` surprise '' announcements at the event to showcase their new titles -- and possibly tip their hands about the directions they expect to go in the near future . Many companies also are attempting to bridge the coming console generation gap by letting customers upgrade their games from current-generation to next-generation for a small fee . UbiSoft will introduce a new fighting game designed specifically for the Xbox One , `` Fighter Within . '' The new game aims to provide realistic fighting competition by using the Kinect controller and giving players more precision and responsiveness . This game is destined to get players moving , sweating and involved as they battle against their friends . The 1-to-1 motion tracking with Kinect should deliver realistic moves and `` injuries . '' Blizzard took this opportunity to announce additional content for its popular `` Diablo 3 '' game . Called `` Reaper of Souls , '' the new content aims to give players the experience many have been clamoring for since the release of the game . `` Reaper of Souls '' will have a new melee class , more monsters and environments , and , of course , new loot . `` Diablo 3 '' will be making its console debut this fall on current generation and next-gen consoles . Fresh off the success of `` XCOM : Enemy Unknown , '' 2K Games wants players to take another plunge into the world where you defend Earth against alien invaders . `` XCOM : Enemy Within '' will be announced at Gamescom and offers upgraded weapons , abilities and enemies in the battle for the future . More than just an expansion pack , it will enable players to actually utilize alien technology -- making their squads more than human . While the endgame is still the same , how you get there radically changes with the new tactical elements . Electronic Arts , Warner Bros. Interactive , Activision , Bethesda and many others are also at the show , touting new features to games previously announced . Many of the new games will be playable at the event , which is why so many fans flock to Germany for a taste .
Gamescom opens in Germany on Wednesday . Event is world 's largest trade fair for video games . Sony , Microsoft expected to show off new consoles , titles . `` XCOM , '' `` Diablo '' and `` Dead Rising '' updates to be shown .