System error

v9.1.3·Updated 2026-05-25

Two big rundowns, takes place before r7

About this mod Author’s original text

Welcome to System error

This is a completed rundownwith plugins and only a handful of mods.

Features:

  • 47 levels
  • New enemies
  • F1
  • 13 new weapons
  • 6 new melee weapons
  • New twists

Feedback Special Requests

  • Please report any bugs to Elecjonics

Changelog

  • 5.0.0

Full Release

  • 9.0.0

Second Rundown Release

GTFO: 10 Chambers Collective

MTFO and BepInEx: You guys rock!

Modders: The modding community and their wealth of expertise

Friends: All of my friends whom inspired me to make this rundown and helped test it

Many Others: And all your feedback!

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:

EEC-EEC_IUntilted-CleanerRundownMenueasternunit100-WwiseGameParameterControllerInas07-FixEndScreenhirnukuono-EEC_Hrandomuserhi-OldBulkheadSoundHarmonyhirnukuono-ScoutScreamFixdakkhuza-MTFO

File & checksum

Filename
System_error-9.1.3.zip
File size
21.5 MiB