Stop at Day 530 and farm at least 2,304 rewinds to minimize wave counts for later days. Skill Awakening
: Complete hero quests to evolve heroes (like Paul into Saul) for significant stat jumps. days-bygone-defense
: Keep unlocking new skills until you have all 28. Once all are unlocked, you can "Awaken" them for massive power boosts. Stop at Day 530 and farm at least
: These appear after boss fights and allow you to skip 5–10 days. Your portal skip distance increases with your total Rewind count. Stat & Currency Management days-bygone-defense