Best singleplayer, dungeon crawler and 2d games A Long Way Down mixes Adventure and RPG with varying success. Across the Obelisk has a few great ideas hidden behind classic gameplay. Between mastery and instinct, Black Book pushes your limits. Blood Card won't amaze everyone, but it offers fun for fans. Guild of Dungeoneering brings an uneven but interesting tactical experience. Novus Orbis mixes Adventure and RPG with varying success. Railroads & Catacombs provides an acceptable dive into Adventure. If you enjoy RPG, Shattered Heaven might be worth trying. Challenge lovers? Slay the Spire is waiting for you.