Pokemon Diamond and Pearl Valley Windworks and Commander Mars Walkthrough

Unlock the Windworks, defeat every Galactic trainer, rescue the scientist, and start the Friday Drifloon event. This standalone section joins the route plan to the original Diamond/Pearl map, encounter, trainer, item, and script data; Platinum tables are not substituted.

Route Plan

Use the Works Key at the front door; clear each interior Grunt; heal before Mars; defeat Zubat and Purugly; speak to the reunited family; return on a later Friday for Drifloon.

• Mars's Purugly is an early-game difficulty spike because of its Speed and damage; carry status, Intimidate, or a Fighting move rather than relying on level alone.
• If the Windworks is cleared on Friday, Drifloon normally waits until the following Friday instead of appearing immediately.

Exact pret map constants (2)

MAP_VALLEY_WINDWORKS_EXTERIOR MAP_VALLEY_WINDWORKS_INTERIOR

Wild Pokémon

Each area below has its own table, split by encounter method. Standard grass and cave rates merge every base slot for a species and are shown per time window: morning 04:00-09:59, day 10:00-19:59, night 20:00-03:59. Swarm, Poké Radar, and GBA dual-slot replacements keep their own labeled rows. Underlying slot odds: grass 20/20/10/10/10/10/5/5/4/4/1/1; Surf and Old Rod 60/30/5/4/1; Good and Super Rod 40/40/15/4/1.

Valley Windworks Exterior

Valley Windworks and Commander Mars

Trainers

Field order follows the map's object-event order. Full teams include explicit held items and moves when trdata defines them; cash rewards use the in-engine final-party-slot level and trainer-class multiplier formula.

Items

Hidden Items

Puzzles, Warps, And Switches

1. The interior has no switch maze: follow the only open aisle, fight each Grunt, and save before entering Mars's rear room.

Boss Strategy And Partners

Completion Checklist

• Complete the currently reachable part of this route plan: Use the Works Key at the front door; clear each interior Grunt; heal before Mars; defeat Zubat and Purugly; speak to the reunited family; return on a later Friday for Drifloon.
• Review all 18 encounter rows across the per-area tables, including game markers, method band, time-of-day rates, levels, and each conditional requirement; mark conditional rows for their stated revisit.
• Defeat or deliberately skip every currently reachable trainer row; leave HM-, story-, or National-Dex-gated rows checked only after their access requirement is met.
• Collect currently reachable visible/scripted items and berry trees, use the Dowsing Machine for reachable hidden rows, and retain every explicitly gated row for the named cleanup visit.
• Resolve every currently available puzzle note, boss branch, and partner scene before opening the next section.

Sources And Validation

• pret/pokediamond at commit 038cccaed5de8f013875bc5d734f912d1de08e0f: map_header.c, D/P encounter archives, trdata.json, zone events, script archives, item tables, and trainer graphics.
• Encounter slots were decoded from exact 424-byte D/P members and cross-checked against Gen IV slot behavior; the 0x6C pair is day, morning uses base slots, and 0x74 is night.
• Coordinates remain visible as QA anchors, while each hidden row also provides a plain-English map-region instruction.
• Generation-wide systems that are not tied to a normal map archive—Honey Trees, Great Marsh daily rolls, Trophy Garden, fossils, Pal Park, and event items—are explicitly curated in their dedicated system pages.