Nintendo Switch Online subscribers will have free access to Mario Tennis Aces from August 7-13 as part of Nintendo’s new “Game Trials”.
These Game Trials will give you access to full games for a limited time so that NSO subscribers can try them out before you buy – progress can be carried over.
Mario Tennis Aces is the first game in this new Game Trials campaign in Europe, but in Japan, Nintendo allowed free access to Captain Toad: Treasure Tracker to NSO subscribers in Japan.
Between 7 and 20 August, Mario Tennis Aces will be available with a 33% discount on the price.
— Nintendo UK (@NintendoUK) August 1, 2019