Lost Soul Aside Steam Deck Performance Tested: Is it Playable?

Lost Soul Aside Steam Deck Playable On Steam Deck Performance Gameplay Graphics Settings Tested – SteamOS 3.7 – Lossless Scaling Bonus Test

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– Steam Deck OLED
– 26th August 2025 Game Test
– SteamOS 3.7.13 Stable
– Installed to Internal Drive
– Fresh New Installation
– Low Settings Preset

NOTES: Lost Soul Aside is a very mixed experience in terms of performance and stability. The performance in some parts is actually playable, but when starting a new game and going from area to area, the VRAM usage balloons to over 10GB which can cause the Steam Deck to crash.

The cutscenes can run at 1-3 FPS, likely due to loading the next level in the background which desperately needs fixing as the audio is out of sync and it ruins the story as a result.

00:00 – FSR Performance 1
04:55 – Cutscene Issues
06:32 – FSR Performance 2
07:56 – Settings Menu
08:29 – FSR Balanced
09:20 – FSR Quality
10:39 – No Upscaling
12:19 – 2X FPS Lossless Scaling FSR Balanced
14:25 – New Game Prologue Gameplay

Steam – https://store.steampowered.com/app/3378960/Lost_Soul_Aside/

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Steam Deck OLED
SteamOS 3.7.13
4GB VRAM

Under section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education, and research.
No Games Are Included Or Added

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