77
(10)
Add-on:

Pinball FX2 - Portal Pinball

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11 tracked gamers have this dlc pack, 11 have completed it (100.00%)

There are a maximum of 1 achievement worth 77 (10)

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Portal Pinball Achievements

This is a rare achievementComplete all 6 Test Chambers and then defeat GLaDOS on the Portal ® table. (Single player only)
Unlocked by 11 tracked gamers (100% - TA Ratio = 7.74)