Opposing Forces is a suggestion-based all-text story. The initial concept was to take the common theme of “light” versus “darkness”, and replace light and darkness with other things.
Exactly what those things were was left up to suggestions on the first update. Everything else developed from there.
Opposing Forces was started on June 25, 2021. It updates irregularly. Consequently, it is not as hard to keep up with as Swamped. However, this also means it can be hard to find the latest blog post to make suggestions because there are a lot of Swamped posts in the way, so here is the tag for it to help with that.