Quake Brutalist Jam III (QBJ3) has been released on Slipseer. It’s a community project that’s been in development since winter 2024, with the work-in-progress mod shared with the wider mapping community in October 2025 ahead of the final release.

Despite being presented as a jam, QBJ3 is closer to a full total conversion than a typical map pack. Along with the 77-map lineup, it ships with a new weapon set, a new monster roster, new powerups and a broad visual overhaul aimed at the jam’s oppressive, gritty brutalist style.

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Download page: www.slipseer.com/index.php?resources/quake-brutalist-jam-iii.549

Installation

Mod:
  1. Purchase and download Quake (Steam / GOG).
  2. Download the Ironwail source port, and place it within your Quake directory.
  3. Extract the content of the QBJ3 archive with directories preserved into your Quake directory (e.g. .../Quake/).
  4. If done correctly, Ironwail.exe should be alongside the id1 and qbj3 folders.
  5. Launch Ironwail, open the console (Escape), type game qbj3, then press Enter.

Standalone:
  1. Extract the content of the archive into a folder.
  2. Run QBJ3.exe

Engines

QBJ3 was made specifically for the Ironwail source port (v0.8.1+). If you use other engines — especially the official Quake Remaster — expect issues. For best compatibility, it’s recommended to use the latest Ironwail build.