If you use GOG GALAXY 2.0, please:
- Select the game and click the customization button(it is located next to Play)
- Afterwards, please select: Additional Executables -> Language Setup
- A new window should pop-up. Please select the language and press: Save and exit.
If you don't use GOG GALAXY 2.0, please:
- Navigate to the game installation folder(default: C:\GOG Games\Dead Space)
- Launch language_setup.exe
You can also open menu start, search for Dead Space [GOG.com] and launch Language Setup from there.