Not as rare these days (unfortunately), but in 2016 this game had the most predatory monetization I had ever seen, taking very dark inspiration from "quarter cruncher" arcade games, using an extremely oppressive take on Dark Souls. Impossible to beat without paying tbh but fun to see how far you can get while staying free. I think I lost all my complimentary lives and equipment trying to fight the first main boss, I got rinsed out.