Open assembly_kit.ini or language.txt in the root folder. Change the value to EN.
Warning: Do not use the "Verify Integrity" function—it does not exist in the Codex build.
Typical steps from the codex-exclusive release:
Potential issues on modern systems:
Once downloaded:
Cause: Missing sound_voiceover_en entries in the data folder.
Fix: Ensure you have BOTH part 1 and part 2 of the English voiceover pack. Some repacks only include part 1, causing silence for all agent actions.
Before you download any patches, confirm your version.
Symptoms of a Non-English Codex Build:
Why you cannot just toggle settings:
Unlike official Steam copies, the Codex crack does not allow dynamic language switching. The game checks a specific registry key and a local_en.pack file. If that file is missing, it defaults to the build language.
Open assembly_kit.ini or language.txt in the root folder. Change the value to EN.
Warning: Do not use the "Verify Integrity" function—it does not exist in the Codex build.
Typical steps from the codex-exclusive release:
Potential issues on modern systems:
Once downloaded:
Cause: Missing sound_voiceover_en entries in the data folder.
Fix: Ensure you have BOTH part 1 and part 2 of the English voiceover pack. Some repacks only include part 1, causing silence for all agent actions.
Before you download any patches, confirm your version.
Symptoms of a Non-English Codex Build:
Why you cannot just toggle settings:
Unlike official Steam copies, the Codex crack does not allow dynamic language switching. The game checks a specific registry key and a local_en.pack file. If that file is missing, it defaults to the build language.