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Portal: Prelude RTX

Portal: Prelude RTX

In partnership with NVIDIA and powered by RTX Remix, Portal: Prelude RTX is a remaster of the 2008 ModDB Mod of the Year Top 3 Winner, Portal: Prelude, with stunning full ray tracing and high-fidelity assets, the groundbreaking AI-accelerated performance of DLSS 3, and the lowest texture load times with RTX IO. Step into the boots of Abby, the newest testing associate in Aperture Science, as you solve nineteen mind-bending chambers putting your Portal skills to the ultimate test. Make use of momentum, perform narrow escapes through deadly particle fields, and learn to work with manipulated gravity while heartless but dedicated observers watch and berate your every move. When you finally come face to face with the minds behind Aperture Science, witness the scientific hubris marking the downfall of the facility as the activation of GlaDOS sets the scene for the rest of the Portal series to follow.

Release Date
July 18, 2023

Available On

GeForce NOW

Free tier + Priority/Ultimate paid tiers · 1-hour free sessions (no sign-up required for free tier)

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Single player Science fiction Action

Screenshots

Portal: Prelude RTX screenshot 1
Portal: Prelude RTX screenshot 2
Portal: Prelude RTX screenshot 3
Portal: Prelude RTX screenshot 4

Game Details

Studios

  • Portal: Prelude Team
  • Nvidia

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Game metadata sourced from IGDB. · Last updated Apr 27, 2026