Getting steamclient64 error

Hello, just downloaded Metal Gear Solid V: The Phantom Pain from Dodi and Fit Girl Repacks

When trying to launch the game, i got this error

unable to load library steamclient64.dll

I've tried to copy steamclient64.dll from another installation, and got another error

cannot find steam_emu.ini ( even though the file already exists )

Currently running 6.3.5-gentoo-dist, with Lutris version 0.5.12

Got the same behavior when using FitGirl-Repacks and from DODI Repacks

Hardware:

• CPU: Intel i7 7-6700 (8) @ 4.000GHz
• GPU: NVIDIA GeForce GTX 1070
• Ram: 15933MiB
• Using X server, with KDE Plasma

Please reply if i miss any info

Thank you

The error i got

Edit:

• Add more context
• Add Hardware Descriptions
• Add Image