Amnesia: The Streets of London is a fan-made sequel to Amnesia: A Machine for Pigs. It is from another point of view and branches into it's own story.
The Czech translation for Amnesia: The Streets of London by Swankest CZ is here
How to install:
1): Put the config folder into the London_files folder
2): If asked to overwrite the pre-existing .lang files, click yes/ allow it.
3): Launch Amnesia: The Streets Of London
4): Go into Options/Settings and change language to Czech
5): Restart the mod and it now should be Czech now. Enjoy!
Credits to: Swankest CZ/Michal Paclt for providing the translation
Check out his website: www.madukas.cz
Note: The translation only changes subtitles/notes and HUD, the voice acting is still in english.