byblo: I downloaded the offline installer, but it seems that only the english version is available after installation.
How to enable the french version?
If you are referring to the classic version of the game, there's a separate installer for each of the supported languages, English, French, German, Italian, Spanish, currently named setup_blade_runner_1.0_(34711), setup_blade_runner_1.0_(french)_(34711), setup_blade_runner_1.0_(german)_(34711), setup_blade_runner_1.0_(italian)_(34711), setup_blade_runner_1.0_(spanish)_(34711) respectively. You have to run the appropriate installer for your case.
If you are referring to the Enhanced Edition of the game, there's one unified offline installer, so you execute that one first, then launch the game and set the language from the launcher menu.
From the launcher menu select: Options -> Game Options, and set the language to French for "Audio Language", "Interface Language" and "Subtitles Language". If you set "Français" to the "Interface Language" first, the change will be applied immediately so you can set the rest of the options more easily (since they will be now shown in French).
