This app was mentioned in 4 comments, with an average of 0.75 upvotes
We also released Android version here: https://play.google.com/store/apps/details?id=com.ScoreStudios.RaidTactics
Game is totally free! If you're willing to grind a bit and put some thought into your characters' progression and customization, you can finish the game.
Enjoy!!
This is made in unreal, combination of UMG and paper2d https://play.google.com/store/apps/details?id=com.ScoreStudios.RaidTactics&hl=en