The Docks (E1M1) - Yellow key
DefaultCollect Yellow key in this level to send a check.

COMMUNITY INTEGRATION
Reassemble a fantasy arsenal through the multiworld. Unlock Heretic's maps and colored keys in a shuffled route, with episode selection and optional extra pickup checks.
Maintained by KScl / Kay Sinclaire, Daivuk / David St-Louis
Browse possible checks, rewards and settings. What appears in your game depends on your World options.
The Archipelago 0.6.7 core World defines 1,014 addressed locations across five episodes. Default settings select Episodes 1–3 and leave Check Sanity off, producing 502 checks: 27 level exits with fixed completion events and 475 ordinary randomized item slots. Check Sanity adds 57 nearby redundant checks to this default episode set. Episodes 4 and 5 each add nine maps. The core item rules precollect three starting maps and fill the remaining pool with weapon access, keys, map scrolls, equipment, powerups and filler. Two one-attempt progression checks are in Episode 4, which is off by default. Counts follow pinned source tables and generation code; no seed or Heretic session was run.
Actions and milestones that can send a check to your multiworld.
Collect Yellow key in this level to send a check.
Collect Silver Shield in this level to send a check.
Collect Gauntlets of the Necromancer in this level to send a check.
Collect Ethereal Crossbow in this level to send a check.
Collect Bag of Holding in this level to send a check.
Collect Tome of Power in this level to send a check.
Use the level exit switch to send a completion check.
Collect Dragon Claw in this level to send a check.
Collect Yellow key in this level to send a check.
Collect Green key in this level to send a check.
Collect Silver Shield in this level to send a check.
Collect Torch in this level to send a check.
Collect Map Scroll in this level to send a check.
Collect Shadowsphere in this level to send a check.
Collect Bag of Holding in this level to send a check.
Collect Blue key in this level to send a check.
Collect Ring of Invincibility in this level to send a check.
Collect Tome of Power in this level to send a check.
Collect Ethereal Crossbow in this level to send a check.
Collect Tome of Power 2 in this level to send a check.
A solo Heretic campaign per slot exchanges items in live or asynchronous Archipelago rooms. The integration is not advertised here as native shared-map co-op.