There’s fresh Steam Deck news if you use Decky MultiFrameGen, the unofficial Decky Loader plugin that puts OptiScaler, HelixSR, MAKO and the rest in one Quick Access Menu. Version 1.5.0 is the latest official release, out this morning, 12 November 2026. The headline for Deck owners is a wider FSR 4 files picker in OptiScaler, including community builds aimed at the Deck’s RDNA 2 GPU, on top of other additions that landed earlier the same day.
If you want the setup from scratch, our Decky MultiFrameGen guide still covers how the plugin works and how to install it.
FSR 4.1.2 in OptiScaler
The FSR 4 files dropdown used to be a simple on or off for Valve’s Deck files. Version 1.2.0, from 11 November, turned it into a per-game choice, and 1.5.0 expands that list to five entries:
- FSR 4.1.1 Deck build (Valve): the default, Valve’s FSR 4.1.1 build for the Steam Deck’s RDNA 2 GPU.
- FSR 4.1.2 Lite (AMD): AMD’s smaller FSR 4 model for handheld chips, added in 1.2.0; the plugin describes it as usually faster than the full model.
- FSR 4.1.2 Lossy (Cyboman): the plugin’s hint says about 30% faster than the Valve Deck build by skipping the network on some frames; picture close, not identical; about 9 MB on first use; single-player only.
- FSR 4.1.2 Lite Lossy (Cyboman): about 13-22% faster than AMD Lite, with a picture close to Lite’s, not identical; also single-player only.
- Without the FSR 4.1 Deck files: stock OptiScaler 0.9.4 with FSR 4.0.2, for games that will not start with the Deck files; still the default for Phantom Blade Zero.
The first time you pick Lite, the panel warns you that AMD’s FSR 4.1.2 file (about 43 MB) is downloaded from AMD’s own driver installer, which means you accept AMD’s software licence, and a newer OptiScaler build (about 70 MB) is pulled from OptiScaler’s GitHub. It’s for DirectX 12 games. The plugin does not re-host those files, and they’re cached after the first fetch. Changing the FSR 4 files setting patches the game again and resets that game’s previous OptiScaler.ini settings.
Those Lossy builds arrived through a community pull request by LaurensBosscher (#24), then carried into pull request #26, which has been merged in version 1.5.0, with LaurensBosscher credited as co-author and listed as a new contributor on the release.
ANR frame generation
Earlier the same morning, 1.4.0 added ANR FG as its own Use choice for games that already ship DLSS frame generation. ANR is Apex Neural Rendering, a closed-source beta from Apex Compute. Apex Compute describes it as offering faster frame generation with higher image quality than NVIDIA DLSS Frame Generation, and lists the Steam Deck among supported GPUs. The plugin installs Apex’s package from its GitHub releases (about 11 MB), including Apex’s own OptiScaler, so a game set to ANR FG does not use the OptiScaler from Decky Framegen.
Once it’s in, you turn on DLSS frame generation in the game, picking the NVIDIA option if more than one is listed. Insert still opens OptiScaler’s menu, where the Frame Gen tab can take DLSSG via Nvngx as input and Apex Neural Rendering FG as output. The plugin’s notes still say ANR FG has not been tested on the Steam Deck yet. I did run it in Hogwarts Legacy, with DLSSG on at 2x and the frame rate around 78 FPS. That’s one session, not a benchmark.
HelixSR 3.3
The same 1.4.0 release also brought the plugin in line with HelixSR 3.3.0. From 3.3, HLX FSR 4 comes already built, so the old 420 MB AMD driver download is no longer needed. The setup still fetches NVIDIA’s DLSS DLL, with NVIDIA’s licence applying, to build the upscaling network, then deletes that DLL. Two optional switches, both off by default, add NVIDIA’s DLSS 4 Preset K network and native Vulkan kernels for HLX DLSS. A 1.4.1 checksum fix for a stale HelixSR zip is included in 1.5.0; HelixSR itself stays at 3.3.0.
How to get the update
Already running MultiFrameGen? You can update it from inside the plugin under Show backends. You can also get version 1.5.0 from the project’s latest release URL, or from the Decky-MultiFrameGen.zip on that release. On a Steam Machine, the README notes that URL installs can stall, so the ZIP is the safer option. Our guide to unofficial Decky Loader plugins covers the rest.
The plugin is still unofficial. If a game misbehaves, switch Use back to Off or to the previous backend before you assume the game itself broke.
