The demon hordes are the constant pressure at the heart of Ember and Blade. Battlefields teem with enemies, and the waves grow larger and more dangerous the longer a run goes on. This relentless swarm is what gives the game its survivors-like character: the threat is not a single foe but the sheer, mounting volume of demons that keep coming. For how the hordes sit within the wider design, see Gameplay Overview.

Endless Demon Waves
In Ember and Blade, the world is overrun by demons, and combat often means facing many of them at once. The studio frames the experience around carving through endless hordes, with Fenrix mixing melee and ranged attacks to keep the swarm at bay. Because enemies arrive in large numbers, positioning and crowd control matter as much as raw damage. The attacks you use against them are detailed on the Combat page.
Escalating Difficulty
The hordes are not static. Enemy waves steadily increase in size and intensity as a run continues, so a fight that starts manageable can become overwhelming if you stall. This escalation is part of the game's survival pacing: surviving longer means facing more, and the choices you make, including which Blessings you take, determine whether you can keep up with the rising tide.
Surviving the Swarm
Standing against the horde is about more than reflexes. The game emphasizes strategic play, so managing your space, your cooldowns, and your build all feed into how long you last. Powerful demon bosses, the Judicators of Fate, punctuate the waves with set-piece duels, so a run shifts between clearing crowds and surviving focused, patterned fights against far deadlier individual foes. Broader boss design is covered on the Bosses page.
The Arbor's Crucible Survival Mode
The demo introduced a mode built entirely around the horde fantasy: The Arbor's Crucible. It is an endless-survival arena in which players survive as long as possible against infinitely-spawning demons to earn points. Where the campaign mixes hordes with story and bosses, this mode strips the experience down to pure survival against an unending swarm, making it a focused showcase of how the game's wave combat feels at its most intense.