Metal Gear Solid Delta Steam Deck: FSR4 + Lossless Scaling + Eclipse Mod Performance Tested

Metal Gear Solid Delta Steam Deck Performance Test: 2026 Steam Deck Games – Handheld Gameplay – SteamOS 3.7 – FSR4 + Lossless Scaling + Eclipse Mod

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FSR 4 Guide – https://www.youtube.com/watch?v=sLFr3hRvnUQ
Lossless Scaling Guide – https://www.youtube.com/watch?v=dmnEOZg7bKE

🎮 Steam Deck OLED
🕐 Tested: 8th February 2026
⚙️ SteamOS 3.7.19
🛠️ Installed on Internal Drive (Fresh Clean Install)
📀 Steam Version
⚙️ Low Preset FSR 4 Performance

NOTES: For the Eclipse Mod to work with MGS Delta, currently we need to downgrade the game version to 1.1.2.

A walkthrough guide on how to achieve this is demonstrated at the end of the video.

Eclipse Mod Download – https://www.mediafire.com/file/o5x4jrogin1d3ux/MGS+DELTA+ECLIPSE+MOD.rar

⏱️ Timestamps ⏱️
00:00 – FSR 4 Vs FSR 3.1
00:29 – FSR 4 + Eclipse Mod 1
01:54 – FSR 4 + Eclipse Mod 2
03:22 – FSR 4 + Eclipse Mod + 2X FPS Lossless Scaling
05:20 – FSR 3.1 + Eclipse Mod
06:37 – FSR 3.1 + Eclipse Mod + 2X FPS Lossless Scaling
07:51 – Story
11:08 – Settings Menu
11:31 – How To Downgrade Game Version + Install Eclipse Mod

Steam – https://store.steampowered.com/app/2417610/METAL_GEAR_SOLID_D_SNAKE_EATER/

“A remake of the 2004 game METAL GEAR SOLID 3: SNAKE EATER, with the same gripping story and engrossing world, now with all new graphics and 3D audio that enhance the jungle atmosphere. Get ready for the ultimate survival stealth action experience.”

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Steam Deck OLED
SteamOS 3.7.19
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

#SteamDeck #MetalGearSolid #Gaming #Games #Steam #Proton #FSR4 #LosslessScaling #MGSDelta #Konami