Coming Full Circle
The game is originally known as “Nightmare House 2”, a horror Source mod in 2010 released on Moddb. It packaged an earlier horror map of a haunted house, Nightmare House, with a full fledged story of a hospital run over by a failed experiment, Nightmare House 2.
Nightmare House was featured in the Moddb 2010 Mod of the Year Awards, played by super early days of Markiplier, jacksepticeye, PewDiePie and others. Since 2010, we’ve only released one more iteration in 2015 in an effort to fix the issues followed by the 2013 Steampipe update. At the time, shipping mods on Steam wasn’t as accessible- so it’s really exciting for us to finally ship it here now, free and accessible to everyone.

New Old Horror
Now with The Original Mod in 2024, it was super important for us to respect the same classic horror experience. But other than just making it available here, we’ve peppered it with many small improvements.
To start, the mod is now under Mapbase, giving us access to new modern features such as tree sway, better lighting and fog. Thanks Mapbase! We also took this opportunity to retouch a few areas in the game, switched some textures, improved the lighting, fixed the harsh flickering lights across the maps and more.
We have additionally rebalanced a few parts of the game like the boss fight, and since we’re on Steam, there are now Steam Achievements to hunt. You might want to try to find the hidden Dave Co map.
If you’re looking for The Lost Files- we will add them in a future patch sometime soon, but in the meantime you can find the original sources on Moddb.

New Localization Support - we need YOU
One of the best things about Nightmare House is that we now properly support localization. Many of the hard coded strings in the maps were fixed, allowing better localization support. With the help of an awesome team, aside from base English, Nightmare House now supports:
- Traditional/Simplified Chinese
- Ukrainian
- Russian
- Japanese
And we want to add more- Spanish, French, Korean, Portuguese, Italian, etc. If you’d like to help localize Nightmare House and you have experience localizing games, let us know. Experience with Source mods is a plus but not a must. Hop over to our Discord and just say it, anywhere. Our server is pretty chill so we’ll catch it and ping you back.

We can’t say this enough, so we’ll say it again- Thank you for playing Nightmare House over so many years, back then and again now.
We’d love to hear what you think, whether you’re revisiting the game after a decade, or this is your first shot at Nightmare House. You can really help by spreading the word and leaving a review! And until our next stuff, don’t be a stranger and drop a follow.
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