- Portal: Prelude, the official free Portal modification website. Download the game, check the ladderboard, and access a lot of goodies.
- Portal: Prelude, as its name implies, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch way before she was plugged in.
- Portal: Prelude RTX is a stunning fully ray-traced remaster of the iconic prequel mod for Portal, featuring NVIDIA DLSS 3 and RTX IO.
- Portal: Prelude, as its name states it, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch, even before she was plugged in.
- Portal: Prelude is an unofficial prequel to the game Portal, developed by an independent team of three. The game features a brand new storyline focusing on the pre-GLaDOS...
- Portal: Prelude is by far one of the most well-known and classic mods for the original Portal, for better or for worse.
- I am a big Portal fan and a week ago I heared about a cool mod called "Portal: Prelude". But I STILL don´t know how to install this mod or what I need for this mod.
- Portal: Prelude is a mod for Portal released on October 10, 2008, which aims to extend the Portal storyline, focusing on the pre-GLaDOS era of Aperture Science.
- blocks in test chamber 19 * Fixed: at the end, the new menu doesn't show up if the console if visible Portal: Prelude 1.0.0 (released 2008-10-10) * Initial release.
