Title is self-explanatory.

A handy list of games for when you want to throw a LAN party or play co-op with your friends using LAN emulators like Radmin (recommended for 5v5 games), Hamachi, etc. Some of these games come with built-in LAN functionality or allow you to host your own servers that other players can connect to, while to play other games via LAN you will need to install mods.

A few notes:
• You can play any season of R6 Siege if you and your friends download it online.
• You can play DS 1-3 and Elden Ring co-op via LAN, but you'll have to mod them (Painted Worlds for DS 1--3 and Seamless co-op for Elden Ring).
• You can play CoD Zombies via LAN, but I believe it only works in Black Ops 1-2.
• You can play Tarkov co-op with your friends using a mod called SIT (Stay In Tarkov), but it's still in development and may be buggy/unstable.
• You can play Skyrim via LAN using the Skyrim Together Reborn mod, but it can be buggy sometimes.
• You can mod a lot of these games, but your friend(s) will have to install the same mods as you.
• You will need to install Nitrox to enable co-op in Subnautica
• You will need the HKMP mod for Hollow Knight co-op
• You will need the multiplayer mod for Cities: Skylines co-op
• You will need the multiplayer mod for Blasphemous co-op/PvP
• You will need the NVMP mod for Fallout: New Vegas co-op