hello, here I allow myself to post a message to find out if someone has a solution to my problem, the application does not want to patch the game and therefore it remains in English... thank you in advance and have a nice day.
If there's a IL2CPP folder in whatever game it is then ReiPatcher won't work. You would need to BepInEx 6 (basically the manual Rei) or MelonLoader, and the equivalent X Unity auto translator.
I posted a quick guide to installing it for a different game here. That game needed the x64 (64Bit) version, but another might need the x84 (32Bit) one.
I just grabbed a year old copy of the game from SteamUnlocked, it's not Unity (think it's Tyrano or some kind of Electron thing) so ReiPatcher and other Unity things won't work.