So, Chasm is a single-player platformer action-RPG, very similar to Castlevania: Dawn of Sorrow, with procedurally generated layouts of the dungeon. The plotline remains largely the same, as do the order that you do must of the game in terms of playing through its areas, (Mine, Catacombs, Garden, and Castle Keep. (Maybe more?)) but the layout of each of these areas will always be different when you create a new character. You go around exploring, finding captured villagers that will then aid you in your journey, finding puzzle items, gaining items that help you move around, (The ground sliding ability, a double jump, etc.) and a cog that fits onto a mineshaft elevator device to let you descend further into the mines. The game has plenty of save rooms between "groups" of rooms, and even warp rooms so you don't have to do as much walking.
So I'm happy to say that their release is just around the corner! On July 31st, this very month, we'll be able to buy it for about $20 (I think) and enjoy it. I've been playing a backer demo that was made one or two years ago, and it plays beautifully. They also just implemented land-canceling attack animations when you jump, just like in Symphony of the Night and Bloodstained: Ritual of the Night, so I'm very excited about that. It's always been a huge part of my gameplay style.
Take a look at the trailer.