Catch-up is still stash-value based, but Expedition 3 now makes you clear the damage challenge first. Use this as a planning aid for the discounted retro points only.
Planning numbers come from this site's bundled expedition data (missed-expedition catch-up block). Expedition 3 only unlocks catch-up after the five-skill-point damage challenge is complete. Embark can change costs, caps, and eligibility - use the in-game catch-up UI before you spend.
Uses 300,000 coins per SP for this block. The current tracked site planning total is 91 SP across modeled expeditions, but your live account panel is the authority.
Archive departure stash math and current catch-up stash math live in the stash calculator. Narrative rules: Catch-up system.