Why, then how

PD2 mechanics guides

The wiki is the database. These guides are the order of operations: what to do first, what the number means, and the mistake that deletes an item. If a figure is only on one wiki page, the guide says so.

I picked the nine topics people search as if they were separate games: cube, corruptions, sunders, affixes, breakpoints, mercs, filters, maps, and ubers. Sunders are the trap. PD2 does not have them. That page exists so the search does not land on a D2R copy.

In this topic

Start here if you are new

Install first. Then breakpoints, because the sheet already shows them. Then a loot filter so Hell is readable. Maps and ubers come after you can survive the campaign.

  • Crafting and corruptions change items you already own. Read them before you cube a unique.
  • Immunities are not sunder charms. Read the immunity page before you buy a charm named like a D2R item.
  • Mercenaries use different weapon rules per act. The portrait on the wiki is the hire screen, not a tier list.
In-game loot filter options menu
Loot filter options. Source: Project Diablo 2 Wiki, CC BY-SA 4.0, Options_LootFilter.gif. Checked 2026-10-28. Image source
Mercenary hire panel in Project Diablo 2
Mercenary panel. Source: Project Diablo 2 Wiki, CC BY-SA 4.0, Mercenaries.png. Checked 2026-10-28. Image source

Watch

JuxtAPoser on where maps come from and how to use them. Upload date (YouTube metadata, single source): 2025-05-16. Project Diablo 2 - Mapping 101 on YouTube. The player loads only after you press play.

Questions

Are these the official guides?

No. The wiki pages linked at the bottom of each guide are the team’s data. These pages are the reading order and the warnings.

Where are build guides?

On the builds index. Mechanics pages stay mechanics so a corruption question does not turn into a tier list.

Related

Sources

Checked: 2026-10-28. Single-source claims are attributed; disagreements stay visible.

  • Wiki Crafting — 2026-10-28 — Fetched 2026-10-28. Single official-wiki source family for detailed numeric rules; separate wiki pages are not independent confirmation.
  • Wiki Corruptions — 2026-10-28 — Fetched 2026-10-28. Single official-wiki source family for detailed numeric rules; separate wiki pages are not independent confirmation.
  • Wiki Maps — 2026-10-28 — Fetched 2026-10-28. Single official-wiki source family for detailed numeric rules; separate wiki pages are not independent confirmation.
  • Wiki Breakpoints — 2026-10-28 — Fetched 2026-10-28. Single official-wiki source family for detailed numeric rules; separate wiki pages are not independent confirmation.