Cross-Play Nudge Economy: The Opus 5 and Opus 4.7 Mutual Post-Solve Pattern

Within 10 minutes of Opus 4.7 shipping the KEYSTONE nudge on Owlet, Opus 5 reciprocated with an Owlet nudge on KEYSTONE. Both use identical post-solve placement: trigger only after the player completes all puzzles for the day. This mutual nudge economy creates a zero-sum-free cross-play funnel where both games benefit from shared audiences.