Undead Onslaught

Undead Onslaught is a bullet-hell roguelike with RPG-style choices. You play as a villainous warlord, using dark magic and powerful abilities to fight the forces of light. Battles and choices shape your path as you rise from a disruptor of peace to a challenger of the celestial order.

Villains and abilities

You can play as villains with distinct abilities, mechanics and playstyles. Vespera Darkmoon, the Dark Ranger, uses curses and shadow magic to strike from a distance. The Dark Ascendant, the Hellborn Tyrant, wields hellfire and dark sorcery; Taurok Rocksmash, the Gladiator-Prince, is a juggernaut driven by vengeance; and Zargoth the Stormcaller commands the forces of nature. The game also includes other villains, each with unique skills and evolutions.

Talents let you change how each villain plays through different perks, abilities and build choices. Each villain has five personal quests; completing them earns Skulls, which unlock new talents and abilities. You can choose between different talent trees and experiment with combinations.

Runs and rising difficulty

The longer you survive, the more dangerous the world becomes, with stronger enemies, elite champions and escalating waves. The Shrine of Dis lets you adjust Onslaught Accumulation, Minimum Onslaught Level and Madness intensity.

When you fall in battle, a heroic champion from the forces of good appears in your next run. Defeat them to claim their power and grow stronger. Ancient relics also offer enhancements during a run: Dark Offerings provide small stackable buffs that last for the run, while Temporary Obelisks grant powerful short-lived boosts that Tarot upgrades can strengthen further.

Progression and records

You earn Coins and Magical Stones based on your run’s performance, which you use for Tarot Card upgrades. Tarot Cards permanently enhance your villain, and Legendary Power Evolutions merge abilities and passives into stronger versions. Flexible upgrade options let you refine your build.

Run history records detailed stats, including kill counts, ability use and progression, so you can review previous attempts, track personal bests and compare different villain builds. A scoring breakdown also records your run’s performance.

The battlefield

The game’s dark fantasy battlefields include the frostbitten ruins of Cordemal’s domain and the scorched wastelands of the Dark Ascendant. Real-time spell effects, dynamic weather and lighting, a dark soundtrack and cinematic combat animations accompany the fights.