I used to be a fairly casual player of Arknights, a tower defense game for mobile. That changed when the developers added a permanent roguelike mode that forced me to use the free gacha characters I had long retired. I found myself playing the “Integrated Strategy” mode for eight hours a day. It was so engrossing that…
Source: Kotaku – Arknights’ New Roguelike Mode Makes Its Gimmicky Characters Worth Playing Again