River of Blood will feature a new story campaign with an enthralling five map mission that has players traveling upriver, stopping at different points along the way to collect supplies and take on new enemy threats. There will a new Cleaner that joins the roster with this new expansion. She is called Tala, a former cultist outcast, who has now turned Cleaner and is accompanied by a Ridden companion called Jeff, a friendly Tallboy that can be summoned to assist the team. Tala can summon Jeff with a whistle or other Cleaners on her team. Rivers of Blood will feature eight exclusive character skins and 12 exclusive weapon skins. It also has new weapons, accessories, and cards. Less