What is Prelewd?

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Prelewd is a 3D porn simulator with VR capabilities and support for SFM animations, Source Engine (and Source2) assets, as well as VR/360 videos. It currently has limited interactivity options (such as replacing characters, changing skins, bodygroups, sets, etc.) and has both a VR and a non-VR mode (i.e. you don't necessarily need a VR headset). Using the animation retargeting system, you can replace the actors in the scenes with any Source Engine character you want (e.g. from, even if the model has different proportions or a vastly different skeleton:


Prelewd also ships with the free and open-source Pragma Filmmaker, a work-in-progress alternative to the Source Filmmaker.



You can download the free beta below. It includes all of the basic features and ships with one demo animations (Courtesy of Lieutenant Flapjack). In addition, you can also get the "Ciri Cowgirl" animation (by DesireSFM) from the "projects" channel on the Discord server.

Latest Version: 0.2 (21-06-15)


If you like the concept and would like to help the project to grow, please consider supporting it on SubscribeStar or Patreon. Depending on the Tier, you can get exclusive access to features such as:
- Your name in the credits
- Exclusive Prelewd features
- Access to exclusive Discord channels
- Early access to new Prelewd updates and features
- Access to additional Prelewd retarget rigs for replacing character models

If you're a SFM animator, you can also support the project by providing one of your animations for use in Prelewd. For more information, click here.

You can find instructions on how to use Prelewd over here.

If you want to change the default characters with custom ones, check out this article.


System requirements

  • Operating System: Windows 8.1 64 Bit (or newer)
  • Memory: 4 GiB RAM or more
  • Graphics card: GTX 1050 Ti or newer
  • VR (optional): Steam with SteamVR and a SteamVR-compatible headset



  • Which VR headsets are supported?

Anything that works with SteamVR should work fine, however I've only done extensive testing with a HTC Vive. If you're having trouble with your headset, please let me know on Discord.

  • Can you create custom animations for this?

Yes! You can create animations in SFM and simply import them into Prelewd. No need to port any assets either, the Engine handles it all automatically. You can then let Prelewd pack up your animation with all of the assets required to watch it, and ship it to whomever you want. Check out this article for more information and/or join the Discord server if you need assistance.

  • How can I follow the progress of the project?

You can follow the project on twitter, or join the Discord server. There is also a subreddit for the project over here.

  • How can I support the development of the project?

To make this project work, I rely on financial support. The more supporters I can get on my Patreon, the more time I can allocate for Prelewd. Patron++ tiers (and above) will also grant you access to Patreon-exclusive features in the future!

If you're a content creator, there are other ways to help out as well. I'm looking for some animations to ship with Prelewd, if you're interested, please contact me on Discord!


Content Creators

If you're a SFM content creator, you can import your SFM animations directly into Prelewd and create a Prelewd project with them (no VR headset required). Usually not much work is needed, you can directly import your SFM sessions into Prelewd, all asset files (models, materials, textures, etc.) will automatically be detected and converted, and you can then simply run the project packager to pack it all up into an easy to install package for other people. You can find more information on how to get started here. If you have questions or need assistance, please join the Discord server.

I'm always on the lookout for new animations to add to Prelewd, so if you're feeling generous, please consider allowing me to ship one of your animations with Prelewd! I cannot pay you, but every animation starts with a splash-screen, which lets you advertise your own Patreon or other means of supporting you.
If you're interested, please contact me on Discord.