Brink is part of a growing trend for games that seek to blur the line between single-player and multiplayer. Since Halo 3 extended a lobby system and support for four players across its entire campaign in 2007, and Valve turned a simple survival shooter into the endlessly replayable standard-bearer for co-op gaming a year later with Left 4 Dead, developers have started to question why they needed two methodologies to make one game. Even the conservative heartlands of the Japanese industry have started to explore the idea - see Capcom's Lost Planet 2, out next week.

Presenting at Fable III at X10 in San Francisco, Peter Molyneux has revealed that the RPG - if you can still call it that - has no experience points or health bar.

Health is represented by the screen-colouring effects common in action and FPS games - Fable III has no HUD most of the time - while your character grows in power according to how many followers he or she has in the game's world of Albion.