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Portal: Prelude RTX

Wishlist Follow Ignore Install Unwatch Watch
App ID 2410180
App Type Game
Developer ,
Publisher Nicolas 'NykO18' Grevet, David 'Kralich' Driver-Gomm
Supported Systems Windows
Technologies Source Engine
Last Changenumber 30429427
Last Record Update 5 August 2025 – 15:12:33 UTC ()
Release Date 18 July 2023 – 17:21:00 UTC ()
Parent App Portal (400)
😕 42.05%
1k reviews
1
In-Game
+3
💥 Action 🗺️ Adventure 🌄 Action-Adventure 🏗️ Platformer 🧩 Puzzle

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

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

Trailer 588311 ↴

trailer_name Portal: Prelude RTX - Release Trailer
trailer_category 3
trailer_480p ↴
video/webm 256958620/movie480_vp9.webm
video/mp4 256958620/movie480.mp4
trailer_max ↴
video/webm 256958620/movie_max_vp9.webm
video/mp4 256958620/movie_max.mp4
microtrailer ↴
video/webm 2410180/588311/a9cbedf7e119c6f660797039000a0b8ea639dd28/1750916728/microtrailer.webm
video/mp4 2410180/588311/a9cbedf7e119c6f660797039000a0b8ea639dd28/1750916728/microtrailer.mp4
adaptive_trailers ↴
dash_av1 2410180/588311/a9cbedf7e119c6f660797039000a0b8ea639dd28/1750916728/dash_av1.mpd
dash_h264 2410180/588311/a9cbedf7e119c6f660797039000a0b8ea639dd28/1750916728/dash_h264.mpd
hls_h264 2410180/588311/a9cbedf7e119c6f660797039000a0b8ea639dd28/1750916728/hls_264_master.m3u8
screenshot_medium 256958620/movie.293x165.jpg
screenshot_full 256958620/movie_full.jpg
all_ages true
is_highlight true
timestamp 18 July 2023 – 13:00:44 UTC
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