狼人真言 is a necessary companion app for the Werewords board game, providing instructions for the night phase, generating magic spells, and keeping track of the game's timer. It must be used in conjunction with the Werewords board game distributed by GoKids.

In Werewords, players deduce a secret magic spell through a series of "yes" or "no" questions. If the magic spell is guessed before time runs out, you win! However, one player secretly plays as the werewolf, who not only knows the magic spell but also tries to obstruct everyone. If the magic spell is not guessed, you can still win by identifying the werewolf!

On the other hand, one player takes on the role of the seer, who also knows the magic spell but must be careful not to reveal their identity while helping everyone. If you guess the spell, the werewolf has a chance to identify the seer and turn the tables!

To use the app, select the roles used in the game: werewolf, seer, and villagers, then click "start" to begin. The app will instruct everyone to close their eyes and wake up the mayor and the selected roles in order. Then, the app will prompt everyone to open their eyes and start the timer for the daytime phase. If the players guess the magic spell before time runs out, the mayor should click the "correct" button, and the werewolf can try to find the seer to win. If the players fail to guess the magic spell (or run out of yes/no tokens), they can try to find the werewolf to win.