
"Undead Onslaught" is a Bullet Heaven RPG where you ascend as the villain. Master unique mechanics and strategic combat to dominate a dark, evolving world.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Undead Onslaught is an intense, fast-paced Bullet Heaven Roguelike where you don the mantle of a villainous warlord, wielding dark magic and overwhelming power against the forces of light. Crush your enemies, evolve your abilities, and carve your legend in blood and fire.
Break free from the traditional hero narrative and dive into a world where your rise from a nefarious disruptor of peace to the ultimate challenger of the celestial order is just the beginning.
In Undead Onslaught, experience a unique blend of high-octane bullet-hell action combined with the strategic depth of classic RPGs. Each choice and battle shapes your path through a world filled with formidable foes and breathtaking challenges. Will you master forbidden magic, wield legendary weapons, or lead an army of darkness? The choice is yours.
Wield the power of the most infamous villains, each with their own devastating abilities and playstyles:
Vespera Darkmoon – The Dark Ranger: Master of curses and shadow magic, striking from the darkness with deadly precision.
The Dark Ascendant – Hellborn Tyrant: A being of infernal destruction, wielding hellfire and dark sorcery to annihilate all in his path.
Taurok Rocksmash – The Gladiator-Prince: A fallen heir turned unstoppable juggernaut, driven by vengeance.
Zargoth the Stormcaller – The Wrath of the Elements: A warrior-shaman commanding the very forces of nature against foes.
And many more! Each villain has unique mechanics, evolutions, and skills to master!

Every time you fall in battle, a heroic champion from the forces of good will appear in the next run.
Slay them, claim their power, and grow even stronger!
This cyclical system ensures that defeat is only a stepping stone toward ultimate dominance.
The longer you survive, the deadlier the world becomes.
Face increasingly powerful enemies, elite champions, and ever-escalating waves of destruction.
Customize your experience using the Shrine of Dis, adjusting Onslaught Accumulation, Minimum Onslaught Level, and Madness intensity.
Each villain has five personal quests that shape their growth and unlock their hidden potential.
Completing these challenges grants Skulls, the key to unlocking devastating new talents and abilities.
Choose between different talent trees that dramatically change your playstyle!
Talents redefine how each villain plays, offering unique perks, abilities, and build-altering choices.
Experiment with different combinations for insane synergy and replayability.
Earn Coins and Magical Stones for Tarot Card upgrades based on your run’s performance.
Track your best (and worst) moments with our new scoring breakdown!
Analyze your previous runs and improve your strategies.
See detailed kill counts, ability usage, and progression stats.
Track your personal bests and experiment with different villain builds.
Harness powerful enhancements mid-run with ancient relics scattered across the battlefield:
Dark Offerings: Small stackable buffs that persist throughout your run.
Temporary Obelisks: Short-lived but powerful boosts that can be enhanced further with Tarot upgrades.
Unlock and upgrade powerful Tarot Cards to permanently enhance your villain.
Legendary Power Evolutions – Merge abilities and passives into supercharged versions for devastating results!
Customize and refine your build with flexible upgrade options.

Steam Achievements & Game Recording: Track your progress and showcase your best moments.
New Save Slots: Manage multiple villainous campaigns.
Taro Card Cost Rebalance: More dynamic upgrade paths with scaling costs.
Better enemy variety, smarter AI, and expanded difficulty customization!
Improved navigation with minimap overlays and better pathing.
Reworked UI elements to streamline gameplay and keep the action fluid.
Enhanced sound design with unique SFX for almost every in-game event.
A Dark Fantasy World Brought to Life
Undead Onslaught immerses you in a sinister, blood-soaked battlefield teeming with dark magic and ruthless combat. Each area is crafted with meticulous attention to detail, reflecting the violent nature of your villainous crusade.
From the frostbitten ruins of Cordemal’s domain to the scorched wastelands of the Dark Ascendant, every environment tells a story of conflict and chaos. Enhanced visual effects and deep environmental storytelling make the world feel alive—and drenched in blood.
Experience true villainous power with:
Real-time spell effects and enhanced visual clarity on all abilities.
Dynamic weather and lighting that set the tone for your battles.
A dark, atmospheric soundtrack that intensifies the thrill of combat.
Cinematic combat animations that bring every clash to life.
Each battle is a spectacle of destruction, making every encounter feel impactful and rewarding.
The darkness never stops evolving. Future updates will bring:
New Game Modes: Experimental mechanics for even greater challenge and replayability.
More Playable Villains: Darker, deadlier champions to unleash upon the world.
Expanded Lore & Story Content: Discover hidden truths about the war between darkness and light.
Enter the battle now. Build your legend. Dominate the world of Undead Onslaught.
Right now the cheapest offer for Undead Onslaught is PLN 36.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Undead Onslaught is PLN 27.74 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Undead Onslaught drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.