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Half-Life 2 RTX: Is It Out? What the Demo Contains

Half-Life 2 RTX was announced at gamescom 2023. Three gamescoms later, with the 2026 show closing today, the only thing you can install is a two-chapter demo that has not been patched since May 2025. Here is exactly what exists, what it needs, and what has never been dated.

Published August 30, 2026·9 min read·By Mythras
The Half-Life 2 HEV suit rebuilt with physically based materials and lit by ray tracing inside its charging cabinet, an official Orbifold Studios screenshot of Half-Life 2 RTX from Kleiner's lab rather than from the two chapters the demo covers.

Half-Life 2 RTX was announced on August 22, 2023, at gamescom. NVIDIA's announcement post called it "early in development."

gamescom 2026 closes today. Three shows have come and gone since that reveal, and the thing you can install is still a two-chapter demo whose last patch was May 8, 2025. That is not a knock on the people building it. It is just the fact that decides whether you should clear 50 GB tonight, and it is the one a trailer will never tell you.

The short answer

There is no full release, no release date, and no announced window. One free Steam entry exists, it holds a demo of two chapters, and it has been quiet for over a year.

What Half-Life 2 RTX actually is

It is not an NVIDIA product and it is not a Valve product. Orbifold Studios builds it, using NVIDIA's RTX Remix toolset, and Orbifold's own site describes the studio as "a collective of developers who love Half-Life, formed by the teams behind Half-Life 2: VR, Half-Life 2: Remade Assets, Project 17, and Raising the Bar: Redux."

That first name should look familiar. The people behind the Half-Life 2 VR Mod are part of the same collective doing this — two very different total conversions of the same 2004 game, from an overlapping bench of modders.

Steam classifies it the same way it classifies the VR mod: an app of type mod, attached to Half-Life 2 (app 220), costing nothing. The store copy calls it "a free DLC for all Half-Life 2 owners." Orbifold's launch announcement was addressed to "Owners of Half-Life 2," so the base game is the entry fee — and Half-Life 2 is a $9.99 purchase.

The scope Orbifold states for the finished project is total: "we're updating every texture, model, and level, adding extra geometric detail to buildings and surfaces to realistically interact with fully ray-traced lighting." Their framing for what stays untouched is equally direct — "we're remaking the entirety of Half-Life 2 graphics, while leaving its beloved gameplay untouched." That is a statement of intent about a game that has not shipped, so read it as one. Nothing about the finished remaster can be judged yet, because there is nothing finished to judge.

Headcrab zombies in a fog-filled industrial hall, lit by ray-traced volumetric light in the Half-Life 2 RTX demo.

What shipped, and what did not

The demo went live on March 18, 2025. It covers levels from two chapters: "We Don't Go To Ravenholm..." and Nova Prospekt.

QuestionStatus as of August 30, 2026
Full game released?No
Full game dated?No date and no window announced
Demo released?Yes, March 18, 2025
Chapters in the demo"We Don't Go To Ravenholm..." and Nova Prospekt
PriceFree; requires Half-Life 2
Platforms listed on SteamWindows only
Languages listed on SteamEnglish
Last patchMay 8, 2025

Both are lighting-led levels rather than daylight ones: Ravenholm is built around darkness and pooled lamplight, Nova Prospekt around hard interior geometry and shafts of window light. If you want the flat-game versions of them first, the Ravenholm guide and the Nova Prospekt guide cover both.

A Ravenholm alley at night in the Half-Life 2 RTX demo, with a fast zombie and a headcrab zombie under a single street lamp and a shotgun held in first person.

The hardware bar is the real story

Half-Life 2 itself is a $9.99 game from 2004. Here is what the ray-traced version of two of its chapters asks for, straight off the Steam page:

MinimumRecommended
OS64-bit Windows 10 / 1164-bit Windows 10 / 11
CPUIntel i5-8600 / AMD Ryzen 5 3600Intel i7-10700 / AMD Ryzen 5 5600
RAM16 GB16 GB
GPUNVIDIA GeForce RTX 3060 Ti with DLSS onNVIDIA GeForce RTX 4070 with DLSS on
Storage50 GB50 GB

Read the GPU row twice. The minimum is stated with DLSS on, not as a native-resolution figure.

The storage line is worth its own sentence. Orbifold's March 20, 2025 hotfix exists purely to fix a display bug in it, and states the real figure: "The correct download size of 44.1GB is now displayed during installation." Two chapters of a 2004 game, 44.1 GB on the wire.

For measured framerates, DSOGaming ran a launch-day benchmark published March 18, 2025 on a Ryzen 9 7950X3D with 32 GB of DDR5. Their conclusions, theirs rather than mine: at native 1080p you need an RTX 5090 for a smooth run; at native 1440p, none of the GPUs they tested managed it; at 4K with DLSS 4 Performance mode and no frame generation an RTX 5090 stayed smooth but dipped to 54 fps in the most demanding area they could find; and adding 2x Multi Frame Generation on top of that took the same card past 98 fps. That was the launch build, before the two lighting patches, so treat it as a shape rather than a current number.

The in-game lever for all of this is Alt+X, which opens the RTX Remix settings menu with the graphics and DLSS presets in it. Orbifold's launch post points at that key specifically, saying the presets are meant to cover cards "dating back to the GeForce RTX 3060 Ti."

The whole patch record, in one table

Five Community Announcements sit on that Steam feed — a pre-launch post on March 13, 2025, and the four below, which are the complete shipped history.

DateReleaseWhat it did
March 18, 2025Demo launchRavenholm and Nova Prospekt levels playable, free, for Half-Life 2 owners
March 20, 2025Hotfix #1Corrected the displayed download size to 44.1 GB
April 1, 2025Update #2New tonemapper for an over-brightened image; fixed a softlock in town_02 where Grigori would not throw the shotgun; a crash fix, a load-stall fix, crossbow / bucket / mine-hopper asset fixes, and a DLSS Frame Generation artifact fix
May 8, 2025Update #3A full relight for the new tonemapper, heterogeneous fog, an optimised antlion model, improved water, replacement laundry cart and tree assets, a light-flicker fix, an RTXIO crash fix on AMD, and the fast switch menu no longer defaulting to on. A follow-up hotfix removed a file causing false anti-virus hits and fixed a missing texture

Nothing has been posted to that feed since. Checked August 30, 2026.

The lighting argument, in the developer's own words

The most interesting thing about this demo is not the ray tracing. It is that Orbifold shipped it as an instrument, took the results, and changed course in public.

Their April 1, 2025 note states the purpose plainly: "We released the Half-Life 2 RTX Demo as a way to get feedback from the community early to build the best remaster we can." The same note describes the first correction — a tonemapper bug had left "the displayed image to be over-brightened," and the fix meant "areas in shadow will feel much darker, while areas in light will still allow details to shine through without being overexposed and 'washed out'."

That was step one, and they said so: "This new tonemapper represents our first step in responding to community feedback, with many more adjustments to lighting and volumetrics to come in a future patch."

Step two arrived May 8, 2025, and it went further than a tone curve. Their words: "This patch implements a new lighting arrangement that both takes into account the new tonemapper, as well as directly addressing community feedback regarding light levels and fog intensity." The stated result: "By and large, these changes result in Ravenholm being darker, with more intentional authorship of light and shadow."

Two lighting passes in the 51 days between launch and that patch, and Ravenholm is the level Orbifold singled out as the one that came out darker. Whatever else you take from this project, that is a useful data point about what "just add ray tracing" actually costs: the renderer being physically correct and the level looking right are two different jobs. It is also why any screenshot of this demo taken before May 8, 2025 is showing you a build that has since been replaced.

A Nova Prospekt corridor in the Half-Life 2 RTX demo, with an antlion charging down tiled floor under barred window light and the AR2 held in first person.

What the Steam numbers say

Reception is easy to check rather than guess at, so here it is measured rather than characterised. As of August 30, 2026, the Half-Life 2 RTX Steam entry carries 8,983 reviews: 5,069 positive and 3,914 negative, which is 56.4% positive and puts it in Steam's Mixed band.

For scale on the other axis, the Steam API reported 8 people in the demo at the moment this was written, against 1,908 in Half-Life 2 itself. Seventeen months after launch, with no patch in over a year, that is roughly what a finished demo looks like — worth knowing before you read a 44.1 GB download as a live thing rather than an archived one.

Set that against the VR Mod from the overlapping team, checked the same day: 7,758 positive out of 7,922 reviews, Steam's Overwhelmingly Positive band, on a comparable sample size. Same broad group of people, two very different verdicts on two very different things — one a finished conversion of the whole game, the other a two-chapter slice of an unfinished one.

Bugs the team was still listing

The May 8, 2025 announcement carried an "Investigating Reported Issues" block, and since nothing has superseded it, it is still the current known-issues list:

  • Some game overlays can crash the demo. The team recommends disabling overlays, and names FrameView as safe for performance measurement.
  • Steam's F12 screenshot hotkey will crash it. They suggest NVIDIA app's Alt+F1 screenshot, Alt+F9 recording, or OBS Display Capture instead.
  • A first-launch crash tied to shader compilation. Their fix: start the game again.
  • With Desktop Capture active in the NVIDIA app's video capture settings, recording can stop working until the demo is restarted.

If you install this, disable your overlay and rebind your screenshot key before you do anything else. That is four minutes of setup against a known crash.

Four things this gets confused with

Not thisWhat it actually isWhat it needs
The 20th Anniversary UpdateValve's own November 2024 update to Half-Life 2 itself, which is where Lost Coast, developer commentary and Workshop support liveNothing extra
Half-Life 2: UpdateA separate free community pass on Half-Life 2's lighting and bugs, on Steam since March 27, 2015Half-Life 2
Half-Life 2: VR ModThe free roomscale VR conversion, from an overlapping teamA SteamVR headset with tracked controllers
Portal with RTXThe earlier RTX Remix project, applied to Portal; a separate free Steam entry from December 8, 2022Portal, plus its own install

The first row is the one worth separating carefully, because both get called a Half-Life 2 remaster and only one of them is finished. The anniversary update is Valve's, it is in your copy of the game already, and the Lost Coast guide covers what it moved where. Half-Life 2 RTX is a community project and is not in your copy of anything.

Quick Action Checklist

  • There is no full release. Only a demo exists, and no release date or window has been announced for the finished game.
  • The demo covers levels from two chapters: "We Don't Go To Ravenholm..." and Nova Prospekt.
  • It is free, but you need Half-Life 2, which is a $9.99 purchase.
  • Budget 44.1 GB to download and 50 GB of free space. Steam lists Windows only.
  • The stated minimum GPU is an RTX 3060 Ti with DLSS on — the figure already assumes upscaling.
  • Press Alt+X in-game for the RTX Remix settings menu and its graphics presets.
  • Disable game overlays and stop using F12 for screenshots first; both are on the team's own known-crash list.
  • If you last looked at this demo before May 8, 2025, you have not seen the current lighting — it changed twice, with a tonemapper fix on April 1 and a full relight on May 8.
  • Do not read the Steam review score as a verdict on the finished remaster. It is Mixed at 56.4% across 8,983 reviews, on a slice that has not been updated in over a year.

Frequently Asked Questions

Is Half-Life 2 RTX out?
Not in full. Only a demo of Half-Life 2 RTX has been released, on March 18, 2025, covering levels from the chapters "We Don't Go To Ravenholm..." and Nova Prospekt. Developer Orbifold Studios has not announced a release date or a release window for the complete remaster, and the demo's last patch on Steam was May 8, 2025, as of August 30, 2026. The demo is free on Steam and requires you to own Half-Life 2.
What are the Half-Life 2 RTX system requirements?
The Half-Life 2 RTX Steam page lists a minimum of 64-bit Windows 10 or 11, an Intel i5-8600 or AMD Ryzen 5 3600, 16 GB of RAM, an NVIDIA GeForce RTX 3060 Ti with DLSS on, and 50 GB of storage. Recommended is an Intel i7-10700 or AMD Ryzen 5 5600 with an NVIDIA GeForce RTX 4070, again with DLSS on, the same 16 GB of RAM and the same 50 GB of storage. Note that the minimum GPU figure already assumes DLSS upscaling rather than native rendering.
How big is the Half-Life 2 RTX demo?
The Half-Life 2 RTX demo downloads at 44.1 GB, a figure Orbifold Studios confirmed in its March 20, 2025 hotfix, which existed to correct an installer that was displaying a larger size than the real one. The Steam store page asks for 50 GB of available storage space. That is for a demo covering levels from two chapters of Half-Life 2, Ravenholm and Nova Prospekt.
Who makes Half-Life 2 RTX?
Half-Life 2 RTX is developed and published by Orbifold Studios, not by Valve or NVIDIA, using NVIDIA's RTX Remix modding toolset. Orbifold describes itself on its official site as "a collective of developers who love Half-Life, formed by the teams behind Half-Life 2: VR, Half-Life 2: Remade Assets, Project 17, and Raising the Bar: Redux." The project was announced at gamescom on August 22, 2023, when NVIDIA described it as early in development.
Is Half-Life 2 RTX the same as the 20th Anniversary Update?
No. The Half-Life 2 20th Anniversary Update is Valve's own November 2024 update to Half-Life 2, applied to the game in your Steam library, and it is what added the Extras menu, developer commentary and Steam Workshop support. Half-Life 2 RTX is a separate community project by Orbifold Studios, installed as its own free Steam entry, that rebuilds the game's art and lighting for ray tracing. Only a two-chapter demo of it has been released.
Why does the Half-Life 2 RTX demo have Mixed reviews?
The Half-Life 2 RTX demo sits at 8,983 Steam reviews, 5,069 positive and 3,914 negative, which is 56.4% positive and Steam's Mixed band, as of August 30, 2026. The developer has publicly addressed one recurring complaint: Orbifold shipped two lighting patches after launch, an April 1, 2025 tonemapper fix for an image it described as over-brightened, and a May 8, 2025 relight that it said directly addressed community feedback on light levels and fog intensity, leaving Ravenholm darker. The demo also carries a high hardware bar, with a stated minimum of an RTX 3060 Ti with DLSS on.

Keep Reading

Sources & Further Reading
Last updated August 30, 2026.

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