Is it possible to somehow separate the completed tiers from the uncompleted tiers on the cumulative achievements that are listed on the game pages? Currently, it seems like you get the star for completing the achievement if you've cleared the first tier, which doesn't reflect how many tiers you've actually completed. It currently looks like I've completed all the achievements for a game with the stars but I know that's not the case.

For example, when I look at Cybill Sledding, I see all stars, but on my achievement page, I've only cleared the first four tiers for the cumulative achievement. It would be nice if the game page itself displayed the same information - not the exact score or anything, just that I've completed four tiers and have two more to go. The helpfulness of currently listing achievements and tiers on the game page is a bit limited if I have to go look in my achievements to see what tier I'm on anyway. Once I've completed the first tier of a cumulative achievement on the game page, listing the rest of the tiers doesn't help me.

Of course, I don't even know if this is feasible to do it outside of the achievement page. I just figured I'd throw it out there. I can survive if I have to check the achievement page more often.

Yeah, I agree that its pretty useless to mark an achievement completed when there are several tiers. They either shouldn't mark it as completed until the final tier is done, or as you suggest give some indication that there are more tiers. Of course not marking tiers until they are all complete can be a bit of a problem too, what happens when/if they add more tiers?

I think the reasons the Achievements are on the Games page is to show that an Achievement can be gotten from the game, not to actually show your progress. It's duplicated information otherwise. Keep your Achievements open in a different tab and refresh every so often.