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Portal: Prelude RTX

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App ID 2410180
App Type Game
Developer ,
Publisher Nicolas 'NykO18' Grevet, David 'Kralich' Driver-Gomm
Supported Systems Windows
Technologies Source Engine
Last Changenumber 29323842
Last Record Update 2 June 2025 – 11:17:04 UTC ()
Release Date 18 July 2023 – 17:21:00 UTC ()
Parent App Portal (400)
😕 42.30%
1k reviews
3
In-Game

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.

Additional Information

This game is excluded from Steam Family Sharing because: Free Game

Developer Nicolas 'NykO18' Grevet
developer_url http://www.valvesoftware.com/
MustOwnAppToPurchase Portal (400)
ReleaseState released
Publisher Nicolas 'NykO18' Grevet
IsFreeApp Yes
Exclude from family sharing (exfgls) 3 (Free Game)
Store Release Date 18 July 2023 – 17:21:00 UTC ()
osarch empty string
community_hub_visible Yes
Primary Genre Action (1)
Store Genres Action (1), Adventure (25)
Steam Release Date 18 July 2023 – 17:21:00 UTC ()
Store Asset Modification Time 17 July 2023 – 17:48:53 UTC () (1689616133)
library_assets
library_capsuleen
library_heroen
library_logoen
logo_position ↴
pinned_positionBottomLeft
width_pct74.48818897637794
height_pct53.12499999999995
osextended empty string
Is free on the store? Yes
review_score 5
review_percentage 41
Detected Technologies (?) Source Engine, Autodesk_FBX SDK, Bink_Video SDK, CEF SDK, Intel_oneTBB SDK, Miles_Sound_System SDK, NVIDIA_DLSS SDK, NVIDIA_DLSS_FrameGen SDK, NVIDIA_Nsight_Aftermath SDK, NVIDIA_Real-Time_Denoisers SDK, NVIDIA_Reflex SDK, NVIDIA_Streamline SDK, SDL SDK
Steam Deck Compatibility
  • Steam Deck:
  • Valve is still working on adding support for this game on Steam Deck
  •  
  • SteamOS:
  • Valve is still working on adding support for this game on SteamOS
  •  
  • category: Unsupported
  • steamos_compatibility: Unsupported
  • test_timestamp: 16 September 2023 – 00:00:00 UTC
  • tested_build_id: 11741294
  • configuration:
    supported_inputother
    requires_manual_keyboard_invoke0
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_00
    non_deck_display_glyphs0
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimeproton-stable
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
First seen on SteamDB 25 April 2023 – 23:41:44 UTC (), in changelist #18574481

Supported Languages

13 Languages Interface Full Audio Subtitles
English Yes Yes Yes
French Yes Yes
Italian Yes Yes
German Yes Yes
Spanish - Spain Yes Yes
Czech Yes Yes
Dutch Yes Yes
Finnish Yes Yes
Hungarian Yes Yes
Korean Yes Yes
Portuguese - Portugal Yes Yes
Russian Yes Yes
Simplified Chinese Yes Yes

Tags

💥 Action 🗺️ Adventure 🌄 Action-Adventure 🏗️ Platformer 🧩 Puzzle 🦘 3D Platformer 🕹 Precision Platformer 🧩 Puzzle Platformer 🧊 3D 🙌 First-Person ☯ Minimalist 🤖 Artificial Intelligence 🌫 Atmospheric 🤡 Comedy 🧛🏻 Dark Comedy 🗿 Dark Humor ⛓ Dystopian 🌆 Futuristic 🧩 Logic 🚀 Sci-fi

Categories

Single-player Captions available Commentary available HDR Supported Profile Features Limited HDR rendering Cloud Gaming Cloud Gaming (NVIDIA)

Hardware Categories

DualShock Controllers (USB Only) DualShock Controllers DualSense Controllers (USB Only) DualSense Controllers Steam Input API Supported

Assets

Load all asset images
clienticon 7a82d32ba9cd9e530ecfb9f89008babfd52f02ac
clienttga f269f3da0be537235b9de44d57bb7ead341579b6
icon db7d494c8cefdb85add60999563ded66f5b9257a
small_capsule
englishcapsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/englishlogo.png
image2x/englishlogo_2x.png
logo_position/pinned_positionBottomLeft
logo_position/width_pct74.48818897637794
logo_position/height_pct53.12499999999995
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.jpg
page_backgroundpage_bg_generated_v6b.jpg
hero_capsulehero_capsule.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
library_hero_2xlibrary_hero_2x.jpg
community_icondb7d494c8cefdb85add60999563ded66f5b9257a.jpg
page_background_pathapp/2410180
raw_page_backgroundpage_bg_raw.jpg
timestamp18 July 2023 – 21:11:18 UTC
Trailers
256958620 ↴
trailer_namePortal: Prelude RTX - Release Trailer
trailer_category3
trailer_480p/video/webm256958620/movie480_vp9.webm
trailer_480p/video/mp4256958620/movie480.mp4
trailer_max/video/webm256958620/movie_max_vp9.webm
trailer_max/video/mp4256958620/movie_max.mp4
microtrailer/video/webm256958620/microtrailer.webm
microtrailer/video/mp4256958620/microtrailer.mp4
screenshot_medium256958620/movie.293x165.jpg
screenshot_full256958620/movie_full.jpg
trailer_base_id588311
all_agestrue
is_highlighttrue
timestamp1689685244

Depots

ID Configuration Size DL.
228989 Windows Shared InstallDepot from 228980VC 2022 Redist No size
2410181 24.29 GiB 19.53 GiB

Total size on disk is 24.29 GiB and total download size is 19.53 GiB.

Branches

Name Description Build ID Time Updated
public 11741294 19 July 2023 – 20:54:25 UTC

Other

Name Value
privatebranches 1
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