If you download mods can you still play multiplayer ?

[Ramavelli]

Also do we both have to install the same mod in order for a lobby to function ?

[ˢᵈˣ FatCat]

i was using 20 Player lobby, and my friend cant join without install the same mod, after that, all good

[ShockedHearts]

yes

[Ninja7810]

considering theres a more lobby mod yes, and if its only a gui/visual mod that doesn't change the game such as removing wait time for dead drops you'd need to both have it but if its only the minimap mod or client sidded than you can keep it without them having it