Grand Theft Auto 2
Grand Theft Auto 2 is an action-adventure video game developed by DMA Design and published by Rockstar Games. It was released on 22 October 1999 for Microsoft Windows and the PlayStation, followed by Dreamcast and Game Boy Color releases in 2000. It is the sequel to 1997's "Grand Theft Auto", part of the "Grand Theft Auto" series. The open world design lets players freely roam Anywhere City, the setting of the game.
Grand Theft Auto IV
Work on "Grand Theft Auto IV" began in November 2004, almost immediately after the release of "" (2004). Around 150 game developers worked on "Grand Theft Auto IV", led by core members of the team that previously worked on "Grand Theft Auto III" (2001). For the game, Rockstar used their proprietary Rockstar Advanced Game Engine (RAGE), which was previously used in "Rockstar Games Presents Table Tennis" (2006), in combination with the Euphoria game animation engine. Instead of pre-written animations, Euphoria uses procedural animation to control the way the player moves, enabling character movements to be more realistic. The Euphoria engine also enables NPCs to react in a realistic way to the player's actions. In one preview, a player knocked an NPC out of a window and the character grabbed onto a ledge to stop himself from falling. The game also uses middleware from Image Metrics to facilitate intricate facial expressions and ease the process of incorporating lip-synching. Foliage in the game is produced through SpeedTree.