Smash 'N' Splash 4 was a tournament hosted at the Kalahari Resorts in Wisconsin Dells, Wisconsin on June 1-3, 2018. It featured singles and doubles for Super Smash Bros., Super Smash Bros. Melee, Project M, and Super Smash Bros. for Wii U. In addition to Smash, events for ARMS and Splatoon 2 were present at the tournament.