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ULTRAKILL official Steam artwork

COMMUNITY INTEGRATION

ULTRAKILLArchipelago randomizer mod

Rebuild V1's arsenal from other worlds. Secrets, optional challenges and ranks reward the multiworld while received weapons and movement abilities open new routes.

Maintained by TRPG0

GAME MECHANICS

Explore game mechanics

Browse possible checks, rewards and settings. What appears in your game depends on your World options.

Source catalog Release 3.5.6APWorld 3.5.6

ULTRAKILL 3.5.6 defines 284 check candidates; default settings create 140 baseline locations, while challenges, Perfect Ranks, secret exits, enemy rewards and side activities are option-controlled. The defaults start at 0-1, target 8-4 after 15 level completions, and skip 0-E, 1-E, P-1 and P-2; skipped-level and goal-level locations are automatically excluded from item placement. The APWorld requires Archipelago 0.6.7, and its 12 Python modules match the tagged source archive after CRLF-to-LF normalization. These mechanics come from the exact release assets and tagged source; no seed generation or game session was run.

Actions and milestones that can send a check to your multiworld.

284 locations

0-1: Weapon

Collect the named weapon pickup in the level to send its check.

0-1: INTO THE FIRE

0-1: Secret #1

Find this hidden pickup in the level to send its check.

0-1: INTO THE FIRE

0-1: Secret #2

Find this hidden pickup in the level to send its check.

0-1: INTO THE FIRE

0-1: Secret #3

Find this hidden pickup in the level to send its check.

0-1: INTO THE FIRE

0-1: Secret #4

Find this hidden pickup in the level to send its check.

0-1: INTO THE FIRE

0-1: Secret #5

Find this hidden pickup in the level to send its check.

0-1: INTO THE FIRE

0-1: Get 5 kills with a single glass panel

Complete this level's optional challenge to send its check.

0-1: INTO THE FIRE

0-1: Perfect Rank

Earn a Perfect Rank in this level to send its check.

0-1: INTO THE FIRE

0-2: Secret #1

Find this hidden pickup in the level to send its check.

0-2: THE MEATGRINDER

0-2: Secret #2

Find this hidden pickup in the level to send its check.

0-2: THE MEATGRINDER

0-2: Secret #3

Find this hidden pickup in the level to send its check.

0-2: THE MEATGRINDER

0-2: Secret #4

Find this hidden pickup in the level to send its check.

0-2: THE MEATGRINDER

0-2: Secret #5

Find this hidden pickup in the level to send its check.

0-2: THE MEATGRINDER

0-2: Beat the secret encounter

Complete this level's optional challenge to send its check.

0-2: THE MEATGRINDER

0-2: Perfect Rank

Earn a Perfect Rank in this level to send its check.

0-2: THE MEATGRINDER

0-2: Secret Exit

Use this level's secret exit to send its check.

0-2: THE MEATGRINDER

0-3: Weapon

Collect the named weapon pickup in the level to send its check.

0-3: DOUBLE DOWN

0-3: Secret #1

Find this hidden pickup in the level to send its check.

0-3: DOUBLE DOWN

0-3: Secret #2

Find this hidden pickup in the level to send its check.

0-3: DOUBLE DOWN

0-3: Secret #3

Find this hidden pickup in the level to send its check.

0-3: DOUBLE DOWN

Playing with others

An individual ULTRAKILL run connected to a multiworld. Native shared-game co-op is not part of the reviewed installation.

Known scope and limitations

  • Use r2modman or Gale, or install manually with PluginConfigurator and the required mod loader. Install the matching ultrakill.apworld for generation.
  • Start on a fresh save slot and do not complete the tutorial first: its flags can prevent connecting. The NoTutorial companion mod is optional.
  • Logic assumes intentional damage is acceptable. Choose exclusions and check types to match your skill; game difficulty can be changed between attempts.
  • This entry confirms the documented Windows route, not independently tested Proton support or compatibility with multiplayer mods.
  • Use 3.5.6 for its slide and Gutterman shield logic corrections, skull-spawn fix and revised Idol requirements.

This integration is maintained independently of Panludia. Downloads are provided by its maintainer. Contact the maintainer through the linked repository or support channels.

View ULTRAKILL on Steam