Ratchet & Clank: Rift Apart: main story about 9 hours; story with some extras about 14.2 hours; 100% completion about 18.5 hours. These are IGDB player-submitted averages from 9 submissions, not a deadline or a prediction of your pace.
Source: IGDB player submissions
Community playtime data is not available for Ratchet & Clank: Rift Apart yet.
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