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Best Little Nightmares III settings for the Steam Deck (RDNA2 iGPU) (2026)

On a Steam Deck (RDNA2 iGPU) (paired with a balanced Intel Core i5-8600K-class CPU), Little Nightmares III runs at roughly 61 FPS at 1080p with our optimized settings — up from about 28FPS with everything maxed. Here's the configuration and what each setting costs.

The Steam Deck (RDNA2 iGPU) is a handheld graphics card with 4GB of VRAM, and Little Nightmares III is a moderately demanding game. Paired with the Intel Core i5-8600K, it runs well at 1080p — about 61 FPS with FrameCoach's optimized settings, a clear jump from roughly 28 FPS with everything on High.

Across resolutions you can expect around 61 FPS at 1080p and 40 FPS at 1440p, dropping to roughly 22 FPS at 4K. The biggest free win is FSR upscaling — set it to Quality for a large FPS boost at little visual cost.

Resolution	All-High FPS	Optimized FPS
1080p	28	61
1440p	17	40
4K	10	22

💡 Little Nightmares III: Unreal Engine 5 - the fixed cinematic camera hides upscaling artifacts well; lower Lumen GI first.

🚀 Biggest free win: enable FSR (Balanced) — about +55% FPS for a small sharpness trade.

Recommended settings

Upscaling — FSRBalanced+55% FPS

Little Nightmares III is Unreal Engine 5 with full upscaler support. Its fixed, cinematic camera hides upscaling artifacts unusually well.

Global Illumination (Lumen)Low+15% FPS

Lumen lighting drives the game’s eerie dioramas — and most of its GPU cost. High→Medium keeps the mood.

Shadow QualityLow+11% FPS

The game lives on long, soft shadows. High looks nearly identical to Epic here.

Reflections QualityMedium+3% FPS

Reflections on the Spiral’s wet and glassy surfaces. Medium is a safe saving.

Effects QualityMedium+2% FPS

Dust, smoke and ambient particles. Modest cost.

Post ProcessingMedium+2% FPS

Depth-of-field and film effects — a big part of the diorama look, but High vs Epic is invisible in motion.

Texture QualityEpic-1% FPS

Surface sharpness. Nearly free with 6GB+ VRAM.

⚡ Fine-tune this for your exact CPU & target FPS →

🎯 Can the Steam Deck (RDNA2 iGPU) run Little Nightmares III? See the verdict →

Little Nightmares III on other GPUs

Other games on the Steam Deck (RDNA2 iGPU)

Frequently asked

What FPS does the Steam Deck (RDNA2 iGPU) get in Little Nightmares III?

With FrameCoach's optimized balanced settings, the Steam Deck (RDNA2 iGPU) averages around 61 FPS at 1080p in Little Nightmares III — up from about 28 FPS with everything on High.

Can the Steam Deck (RDNA2 iGPU) run Little Nightmares III at 1440p?

At 1440p with optimized settings, the Steam Deck (RDNA2 iGPU) averages roughly 40 FPS in Little Nightmares III; turn on upscaling or aim for a locked 60 for the best feel.

What are the best Little Nightmares III settings for the Steam Deck (RDNA2 iGPU)?

Turn on FSR (Balanced), keep ray tracing off for maximum FPS, and ease the heaviest options like Global Illumination (Lumen) and Shadow Quality down a notch. The full per-setting breakdown is above.

FPS figures are estimates from a generalized model (hardware tier × game load × per-setting weights), not live benchmarks — real performance varies by scene, drivers and game version.