- 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 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...
- A new version of the Portal: Prelude, one of the biggest modifications to the first part of Valve;s popular puzzle game series, has been released.
- View Portal: Prelude speedruns, leaderboards, forums and more on Speedrun.com.
- Like several other classic games over the last few years, Portal Prelude–a free and unofficial prequel to Portal–is getting a big graphical update.
- Portal: Prelude 1.1.0 Complete - A Mod for Portal: Prelude. Portal: PreludeModsGame filesOther/MiscPortal: Prelude 1.1.0 Complete.
- The file Portal: Prelude v.1.2.1 is a modification for Portal, a(n) puzzle game. ... Prelude is a mod for Portal created by Portal: Prelude Team.