Question

That it is an indie bundle game or an exploited game that was gained for free. It means you won't get the entire contributor value for it.

Bundled/Exploited games. Those cannot add up to more thant 30$ or a percentage of your total contributor value

The * behind their names means these games have been in a bundle and special rules apply to their contributor value.

The first 25$ of bundle games are counted as non-bundle. Value above that is only added to a maximum of 20% of your non-bundle contribution.
That means you can only reach a contribution of 30$ with bundle games alone (25$ + (20%*25$)).

Formula:

adjustedbundlevalue = bundlevalue - Min( bundlevalue , 25$ )
adjustednonbundlevalue = nonbundlevalue + Min( bundlevalue , 25$ )

contribution = adjustednonbundlevalue + Min( adjustedbundlevalue , adjustednonbundlevalue * 20% )

source

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