Portal: Prelude RTX
Portal: Prelude RTX is a stunning fully ray-traced remaster of the iconic prequel mod for Portal, featuring NVIDIA DLSS 3 and RTX IO. Survive a facility run by Aperture Science's heartless employees in 19 challenging new chambers and learn how everything came crashing down.
| Type | Mod |
| Release Date | 7/18/2023 |
| Developers | |
| Publishers | |
| Last Updated | 10/26/2025 |
| Steam App Id | 2410180 |
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About Portal: Prelude RTX
Portal: Prelude RTX is an Adventure and Action Mod developed by Nicolas 'NykO18' Grevet, and David 'Kralich' Driver-Gomm. On 7/18/2023, it was released on the Steam Store by David 'Kralich' Driver-Gomm, and Nicolas 'NykO18' Grevet. Portal: Prelude RTX can be played and ran on Windows systems. At the moment, it is not possible to play or run Portal: Prelude RTX on the Steam Deck.
Portal: Prelude RTX also supports 13 languanges in-game including English, French, and Italian. Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, Portal: Prelude RTX supports the following features:
- Single-player
- HDR available
- Commentary available
- Captions available
Media & Sceenshots
Explore the featured video and screenshots from Portal: Prelude RTX featured in the Steam Store.
Supported Languages and Localizations
Portal: Prelude RTX is available in 13 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| French | Yes | No | Yes |
| Italian | Yes | No | Yes |
| German | Yes | No | Yes |
| Spanish (Spain) | Yes | No | Yes |
| Czech | Yes | No | Yes |
| Dutch | Yes | No | Yes |
| Finnish | Yes | No | Yes |
| Hungarian | Yes | No | Yes |
| Korean | Yes | No | Yes |