Lethal Company has a mod that enables more people in a lobby and Project Zomboid is a blast if you can get past the graphics.

• Barotrauma. Game can be challenging and serious, but also ridiculously hilarious and off the walls, often in the same playthrough.
• Valheim.
• Project Zomboid. You might want to consider upping some of the difficulty with more players, though. More zombies, for example.
• Minecraft.
• Planetside 2. Squad/platoon up and just roll around together. The learning curve, however, can be surprisingly high.
• Battlebit Remastered.

If you want a Mario Party like, Pummel Party is very fun imo

@azezeB Some suggestions

1. Dead By Daylight. 5 people with one being the Killer so you can rotate that if desired.
2. Halo Infinite multiplayer can do 12 person parties for the “Big” map modes.
3. I believe Lego Fortnite also lets you have up to 8. It’s more Minecraft and not a Battle Royale at all.
4. Lethal company modded can support more than 4. That could be lots of fun.
5. Retro FPS like Quake from various years. Just as a small distraction

Stardew Valley can be modded to support 8-player sessions but the upcoming 1.6 update will include it natively.

Ones I’ve played, in no particular order

• Rust
• Civilization
• Valheim
• Project Cars
• Battlebit
• Stolen Realm
• Hell Let Loose

TTT in GMod is GOAT

If you want to avoid the hassle that it takes to set up a Microsoft account you may try Minetest instead of Minecraft.
It’s an free and Open Source reimplementation that needs no Java, and the game mode “Mineclone” is very close to the original.

Regardings RTS I can recommend Supreme Commander: Forged Alliance

I you want to try out a business simulation you may look at OpenTTD which is free (and free of ads) over Steam.

And don’t forget Among Us.

There are still MMOs. They can be a blast with a group of friends who consistently play together. Or Ark? Or Rust?

If you like survival games… Ark, 7 days to die, Conan Exiles, Valheim*… You can self-host all of them so you don’t need to deal with griefers.

Valheim’s doesn’t work so well if you don’t all play together. Resources from exploration are finite and it really sucks if all the places you go, your buddies went to and looted already. Works best if most people play together and everyone plays around the same amount of time.

It’s only 4 players but Baldur’s Gate 3 is so much fun to play coop.

Barotrauma should be able to take up to 16 players and if you as a group can get into this game then you will have a good laugh for a good amount of time.

Golf With Your Friends - up to 12 p. Simple game but getting hit by your friends ball right before scoring the hole kinda never gets old.

Any grand strategy will be able to host many players Civ, HoI, HoMaM, AoE, RoN, Stellaris, …

Ps. Check out DEFCON/ICBM

World of Warcraft. If your focus is primarily in PvP, then you specifically want to look at Battlegrounds and Arenas in WoW.

You mentioned LoL. Dota 2 is really fun if you guys haven’t tried it, highly recommend. Biggest thing to get used to compared to LoL is the movement (most heroes have a turn speed)

Muck can be a pretty hilarious time with a bunch of friends. Practically any Halo game has some kind of game mode that a bunch of friends can enjoy.