You can now play your local multiplayer Steam games online with

Steam's previously reported Remote Play Together feature, which makes it possible for friends to play local multiplayer…

The Best Multiplayer Games on Steam Deck in 2023 – Local Co-Op

Steam Curator: More Than 4 Local Multiplayer

The 25 Best Multiplayer Games to play on PC in 2023

You can now play your local multiplayer Steam games online with

Steam Remote Play Together brings local multiplayer titles online

25 best couch / local co-op games for PC to play in 2023

Play Nintendo Switch Local and Online Multiplayer on Linux/Steam

Out of Space on Steam

PICO PARK on Steam

Local co-op game list (Need suggestions!) : r/localmultiplayergames