Into the Breach is out right now, and also a whole mess of other games ranging from TowerFall to Untitled Goose Game were shown.
http://www.nintendoworldreport.com/news/48134/nindies-showcase-summer-2018-roundup
Into the Breach, Samurai Gunn 2, and TowerFall headlined the reveals during Nintendo’s Nindies Showcase Summer 2018. Into the Breach, from the creators of FTL, is available today following its February 2018 PC launch.
TowerFall for Nintendo Switch was shown, revealing a new six-player mode, two new characters from Celeste, and a variety of other modes. Along the same local multiplayer lines, Samurai Gunn 2 was revealed, due out in early 2019, with a full story mode and included comic book along with the acclaimed local mayhem.
Other notable games include Treasure Stack, a cross-platform puzzle game that looks like Wario’s Woods, and Mineko’s Night Market, a cat-fueled adventure game. Notable indie developer Supergiant Games will also be bringing their past games to Switch this year, with the critically acclaimed Bastion due out on September 13 and Transistor set to hit later in November.
Additionally, past Showcase stars such as Light Fingers, Dragon: Marked for Death, and Hyperlight Drifter were given release dates. See below for a roundup of the dates.