Occlusion

v2.5.7·Updated 2026-07-27

A fairly difficult slightly modded but vanilla inspired rundown with its own story. Currently contains 13 levels, with the final level coming soon

About this mod Author’s original text

:// Occlusion

About the Rundown

Occlusion is a rundown that I designed to be a fun challenge for my team.

Not super difficult, but a fun (I hope), vanilla inspired rundown that can just be

a good time with friends. Expect tuning and adjustments to be made to levels

and some weapons as I continue to learn.

Occlusion has in-depth lore, with a fully fleshed out story to follow throughout the rundown. Most voice logs are not voiced yet, but will be eventually.

Current Levels

  • A1: Fracture
  • B1: Failsafe
  • B2: Protean
  • C1: Eternum
  • C2: Suffocate
  • C3: Codex
  • D1: Onslaught
  • D2: Maelstrom
  • D3: Isolation
  • D4: Confluence
  • E1: Teratoma
  • E2: Axiom
  • E3: Occlusion

Future Levels

  • F1: Annihilation ERR:// OCCLUSION DETECTED

Additional Mods/PaintTheDoor Issue

While other mods do not matter, you can install PaintTheDoor in order to make certain doors in Occlusion colored. This is a lore focused feature, but it is currently causing a small amount of people to not be able to play the mod. In the meantime, I will include the files to use the mods with Occlusion. If you install PaintTheDoor and Occlusion fails to completely start, uninstall it and TexturePainter to hopefully fix the issue. If you encounter a crash, it would be greatly appreciated if you could send me the logs so I can resolve the bug.

Weapon Changes

Note: Some weapons will have a rundown number in their description, these are weapons I reverted to a particular rundown's version

  • Assault Rifle: Damage increased to 2.9, ammo reduced to 270 maximum, fire rate slightly reduced
  • Sawed-Off Shotgun: Now does 32 damage with all 8 pellets, and has reload of 1.5s
  • Shotgun Sentry: Penetration increased to 2, maximum ammo increased to 55, RoF decreased to 1, and sentry now targets the body like auto sentry
  • Spear: Now does 25 damage on a full charge but takes an extra 0.3 seconds (2 total) to charge.
  • Knife: Backstab damage increased to 1.5x
  • Pistol, High Cal, Heavy AR: Each of these received or lost a very small number of bullets to reach a proper bullet-to-magazine ratio. It was bothering me

Patch Notes

  • 2.5.7 Added new clears to the Teratoma Death Run logs
  • 2.5.6 Fixed a missing asset bundle that caused the game to not initialize.
  • 2.5.5 Fixed E2 being broken a lot
  • 2.5.4 Fixed several other incorrect waves stemming from the same issue.
  • 2.5.3 Fixed a bug causing the main E1 error to fail to spawn.
  • 2.5.2 Fixed C3 Overload door failing to unlock.
  • 2.5.1 Several rundown customization plugins consolidated into one new plugin for less clutter
  • 2.5.0 E3 added. Various custom enemies got overhauls.
  • 2.4.1 Fixed parts of E2, changed scattergun to have higher damage and lower precision modifier.
  • 2.4.0 Fixed dialogue triggers and made fairly significant changes to E2
  • 2.3.3 Added GlueFix to address spitterbug
  • 2.3.2 Several fixes to D1 and D2, slightly buffed Arbalest, buffed E2 ending sequence. Added Teratoma Death Run log.
  • 2.3.1 Hotfix to E2.
  • 2.3.0 Added a beta of E2: Axiom with Main sector. This level will probably not be as much of a challenge as E1 (unless I completely undercut ammo) and is currently in a state where it may recieve buffs or nerfs, depending on feedback. Also increased Arbalest mag to 30. I hope you enjoy Axiom, and I also hope it doesn't break.
  • 2.2.12 Gave Arbalest a slightly faster firerate and a slightly lower charge time, as it felt clunky to use.
  • 2.2.11 Added the correct Arbalest as the incorrect one was added in the last patch
  • 2.2.10 Added a mod to make my lore audio use the Dialog Volume slider, also added all the logs to D4 and E1. Reworked Arbalest to be a Heavy MG
  • 2.2.9 Updated the Occlusion soundbank, implemented lore logs in C3, D1, D2, and D3.
  • 2.2.8 Bugfix to D3 sequences. Implemented lore logs in C2, C3, and D1. Removed deprecated cells from C2.
  • 2.2.7 Minor bugfixes. Lore fully implemented in C1.
  • 2.2.6 Hotfix to hopefully once and for all fix the E1 timer bug.
  • 2.2.5 Removed an intended pMom from E1. It wasn

Install & use Install: follow the bundled instructions

  1. Unzip the archive from playbuff and read the bundled readme / instructions first.
  2. Most mods rely on the game's mod loader — the usual route is a community mod manager (such as r2modman): pick this game, install, and it handles the loader and dependencies.
  3. For a manual install, put the mod files into the matching Mod / plugins folder inside the game directory.
  4. Launch the game to confirm it loaded; mods with listed dependencies need those installed as well.

Install locations vary a lot between mods — the bundled readme is the most reliable guide.

Dependencies

Install these first, or the mod will not work:

Flowaria-LGTunerUntilted-ConfigurableGlobalWaveSettingseasternunit100-WwiseGameParameterControllerhirnukuono-WardenIntelOhBehaveSam_D_B-SamGeosGTFOModding-SecDoorTerminalInterfaceGTFOModding-PaintTheDoorrandomuserhi-AggroFix

File & checksum

Filename
Occlusion-2.5.7.zip
File size
356.8 MiB