Fields of Mistria Mines 1-40: Checkpoints and Seal Materials

This guide uses a checkpoint route choice: make short pushes from an elevator destination that your own game already displays, then return with enough time and stamina to recover. It does not assert a fixed elevator interval. The seal categories below are corroborated PROXY facts reviewed on 2026-08-11; the exact English labels come from a GrandWiki page declaring game version 1.0 and remain single-source precision. This site did not independently verify them in-game.

What you need

• Food or another recovery plan appropriate to the length of the push you intend to make.
• Free inventory slots for ore, drops, and seal items; leave items with no job on this run at home.
• For the floor 20 seal: Lantern Moth, Ruby, Stone Loach, and Upper Mines Mushroom.
• For the floor 40 seal: Coral Mantis, Sapphire, Archerfish, and Cave Kelp.
• A visible exit condition: turn back when the remaining time, stamina, or inventory no longer supports another safe floor.

Both four-item lists are proxy_corroborated. Their English names come from the reviewed GrandWiki page; the transcript supports the categories but is not an exact UI transcription.

Steps

1. Start from a confirmed checkpoint. Use only a floor destination already available in your own elevator UI. This avoids relying on the uncorroborated fixed-interval claim.
2. Push floors 1-20 in recoverable segments. Prioritize finding the route down, but stop to gather resources that serve your current equipment or seal objective. Random drops are opportunities, not guaranteed outcomes.
3. Prepare the floor 20 set. Keep Lantern Moth, Ruby, Stone Loach, and Upper Mines Mushroom in a dedicated storage group. Before turn-in, compare the names with your current game UI.
4. Reset after the first seal objective. Empty the inventory, restore supplies, and begin the next push from a checkpoint your game shows as reached.
5. Push floors 21-40 with the same exit rule. A failed long run costs more than two shorter runs; take the route that matches your current equipment and recovery stock.
6. Prepare the floor 40 set. Keep Coral Mantis, Sapphire, Archerfish, and Cave Kelp together, then verify the current UI before committing them.

Alternative routes

Depth-first route: carry a light inventory and focus on finding the next descent. Use this when the immediate job is reaching a new confirmed checkpoint rather than filling a material list.

Seal-first route: stop extending depth and revisit accessible areas for missing seal items. Use this when the relevant four-item set is the only open progression job.

Resource-return route: end the run as soon as a valuable carried stack would be difficult to replace. This trades depth for a safer equipment or crafting loop and is valid when recovery supplies are limited.

Mistakes and recovery

• You expected an elevator destination that is not shown: return to a destination the UI actually offers and continue from there. This guide intentionally makes no fixed-interval promise.
• A seal name differs in your game: follow the current UI and do not submit based only on this page. The published lists are PROXY evidence.
• Inventory fills before the target floor: leave nonessential tools and unrelated materials at home, then split the objective into a depth run and a collection run.
• You run short on time or stamina: exit earlier on the next attempt and start from the last confirmed checkpoint. The route is designed to survive an incomplete push.