Slime Assembly Endless

Slime Assembly Endless is an elemental roguelike survival game divided into multiple themed chapters, which is what saves it from the sameness that endless wave games can fall into — the world changes around you rather than only the difficulty. You enter a slime survival world built around elements and fight endless waves of monsters through it, with upgrades arriving constantly enough that the game describes itself as constant chaos and fast-paced progression. The elemental theme is doing mechanical work as well as visual, since element-based enemies and abilities interact in ways a purely numerical upgrade tree would not. It sits between survival, roguelike and straight action, and it moves quickly in all three.