May 2021
◇ Trick & Treat 5 Year anniversary!
◇ Event: Popularity VOTE! (◇ 活动：第三次人气投票！)
◇ Event: Colour the Secret Pumpkin Garden
◇ Rosie’s Road of Love Release!
◇ Event: Calling for fan art!
2020
2020-10-10
◇TWTP Janpanese version is released!
2020-10-01
◇ Airis Adventure 1 Year Anniversary
◇ The 2nd Popularity Vote Result!
2020-09-01
◇ The Witches’ Tea Party 3 Year Anniversary
◇ The 1st Popularity Vote Result!
2020-06-10
◇T&T Janpanese version is released!
2020-04-22
◇ Trick & Treat 4 Year Anniversary
2019
2018
2017
2016
◇ 2016-09-28 Trick & Treat and the Art Book released on Steam!
◇ 2016-09-02 Progress announcement and…fan art? :’D
◇ 2016-04-24 Trick & Treat v1.0 released!
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