Capcom's Dead Rising: Case Zero, the downloadable "prequel" to the upcoming Dead Rising 2, has attracted over 300,000 players in its first week of availability, according to the game's Xbox Live Leaderboards.
Gamasutra sister site GamerBytes notes that over 328,290 entries appear on the game's public Leaderboards, suggesting strong sales for the $5 title.
The strong response to the game is significant given the game's critical reception as the kind of release you would usually see as a free demo made available in advance of an anticipated game's release.
In this way the game may serve as a test case for publishers thinking about charging for early access demos for future anticipated games.
Notably, experience and items earned in Case Zero will be transferable to Dead Rising 2 when it hits stores later this month.