Microsoft may have formally increased the number of Gamerscore points allowed for a single game to 1,750, with the corresponding number of Achievements being 80, according to reports.
The latest on this comes from "several unconnected development sources" apparently. It follows a report a few days ago from Xbox360Achievements.
Previously, it was
understood that a game could offer a total of 1,250 Gamerscore points - 1,000 from a boxed game and a further 250 from DLC.
According to the reports, 1,000 points is still the limit for boxed game content, but a further 750 can now be offered through DLC. This reportedly corresponds to 50 achievements in boxed game content and a further 30 in DLC.
There have been exceptions to the previously-understood rules in the past - notably
Halo 3, which went right up to 1,750 points and
Fallout 3 and
Fable 2, which have gone to 1350 points. These were seen as the exception rather than the rule, however.
Sources:
Eurogamer
Xbox360Achievements