Do you need two switches to play multiplayer?
You’ll be able to play select games for up to two players with the included Joy-Con (one controller per person).
Nintendo Switch supports multiplayer gaming options of all kinds.
You can play together online or in the same room using one system or multiple systems.
Can you play two games one switch?
To do it, one system needs to be signed into the account used to purchase the digital game. Then log into the eShop and deregister that Switch as the primary system. You can then log out of that account on the second Switch, and create a new profile. You can now play the same game on both systems at the same time.
Do you need 2 copies of Smash?
If you want to be able to use the game on two separate systems at the same time, yes, you need two copies. Not exactly. Both consoles can play the game at the same time, but console B has to play on profile A while console A can’t be playing on that profile but can be playing on a different one.
Can two switches play together without WIFI?
It’s impossible to play Switch games together on multiple systems without wi-fi. You can play local multiplayer (like Mario Kart, Super Bomberman, and more) if both users have the game. If you mean playing from cartridge then the answer is no.