Hey everyone, I'm here to share some findings with you.

The Science of EKPM: Saturation Glitching, Native Caps, and Optimal Bail Points

Following up on my one of my posts regarding the "Saturation Glitch," I’ve spent the last few days deep-diving into the spawning logic for every major farm zone in the game.
The goal was to map out hard-coded champion groups and TC85 density to provide a comprehensive Act 1–5 efficiency roadmap.

The Theory: Native Caps & Supersaturation
For those who missed the previous thread, most zones are governed by a Native Cap—a hard limit on how many random elite packs the engine can generate.
However, by utilizing specific pathing to force the game to roll random elites before rendering fixed Superuniques (e.g., Griswold) or Guaranteed Champion tiles (e.g., Tristram Center), you can achieve Supersaturation.

Example: By hugging the wall and clearing Tristram counter-clockwise, you can consistently force 6 packs to spawn, effectively doubling the ROI of a "casual" 3-pack run.

What’s New in this Version:
Act 2-5 Expansion: Full mapping of every high-yield zone from Stony Tomb and Ancient Tunnels to the Act 5 Red Portals (Abaddon/Acheron/Infernal Pit).

The "Bail Point" Meta: The biggest killer of EKPM (Elites Killed Per Minute) is the "Full Clear Trap." The last 1–2 packs in a zone are mathematically "trap packs"—the time spent hunting them in corners ruins your efficiency. I’ve added specific Bail Points for every zone so you know exactly when the ROI drops and it's time to reset.

Guaranteed Champion Mapping: Hard-coded spawns (Tristram Center, Frozen River guards, etc.) are now identified to serve as anchors for your pathing.

The Technical Legend: For the theory crafters, I’ve defined the internal mechanics including Saturation, Supersaturation, and Native Caps.

The Goal: Optimize the Grind
Efficiency isn't just about how fast you kill; it's about how many bosses you see per hour. This table is built to help you hit high-density clusters and bail the second your efficiency peaks. Whether you're running a Pit-Zerker or a 200 FCR Blizzard Sorc, following these pathing/bail rules will result in more bases and HRs over time.

TL;DR: Spawning Superuniques last pushes packs above the cap. Stop full clearing; use the Bail Points.

I'm always looking for more numbers—if you notice any pack count variances or weird spawn clusters during your runs, drop the data in the comments below, I'm constantly updating the table. Happy Horking.

As a rule of thumb, I just look for up to 5 elites per area before moving on to the next. Any extras that show up on my way out are bonuses. You'll usually catch a spare or two as you leave.

Also, the most important thing to realize is that they spawn along your route (just beyond the edge of the screen to be more precise). Spawn locations are not pre-determined, so it doesn't matter where you go. Just tele around into empty areas on your minimap.

This post was edited by unitedcows on Mar 4 2026 11:25pm

Thats why the Arcane route works, pick any lane and go for it

A friend just linked me to your new YouTube video on this! Super informative, and I learned some new shit. And then I realized I had played with you on the last ladder haha. I remember giving you a Bow skill GC when we were farming a public TZ game & I think Arreat was TZ at the time.

Really cool to see your vid go viral, you deserve it! Sub'd to the channel, hope for more D2 content in the future

Yep the general rule for all areas is to just teleport in a straight line and pick up the champs/uniques that spawn along your path and don't try to full clear, and especially not if someone else has already explored the map. There's a few useful areas like trist runs on day 1 of a new ladder, where you should run counterclockwise, but without MH most superuniques are in areas you either can't avoid or can't see on your minimap before they spawn in, so its not too useful. With MH its easier to avoid them before spawning the rest.

Smaller zones with a higher cap don't always reach their max champs/uniques when fully spawned in, but still wind up being a higher rate of finding the uniques fast. Stony tomb is the obvious one, but swampy pit and flayer dungeons both levels 1/2 but skip level 3 in both cases entirely. Arachnid lair/spider cavern are a bit less efficient and harder to get to. Every single fake tal rasha's tomb has a guaranteed elite spawn at its chest room, which you can save for last and saturate, but again impossible without MH.

Some levels have logic that isn't exactly tied to their stats in the level data txt. Halls of vaught has 3-5 listed spawns, but in reality they are disabled and no elites spawn except for nihlithak, a guaranteed champion (not unique) from the endpoint tile and an evil urn. No normal monsters are elites, so the monsters exclusive to halls of vaught like tomb vipers cannot spawn as elites except through the single evil urn upgrading them.

Arcane sanctuary is the single biggest offender once you realize how janky blizzard's spawning algorithm is. You will use up most/all of the elite spawns when exploring a single branch and the 3 remaining ones will just be trash mobs. If you're farming it for summoner + ghosts, the general idea is you either only do the branch towards summoner (mh) or kill bosses in the first branch you choose, then just teleport the 1-3 remaining.

good shit

Saving this for 1 year. More people should know about this.

Dude. You are amazing for this.

saved pics for private use

youtube video link? because thats a lot of words to read