Step into Darkness, Embrace Chaos
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.
Core Features
⚔️ Unleash Villainous Might – Play as Dark Legends
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!
🩸 Hero-Slayer Mechanic – Turn Defeat Into Power
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.
🌑 Our Onslaught System – Dynamic Difficulty Scaling
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.
⚔️ Dark Aspirations – Villainous Quests of Power
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!
🎭 Gameplay-Changing Talent Options
Talents redefine how each villain plays, offering unique perks, abilities, and build-altering choices.
Experiment with different combinations for insane synergy and replayability.
🩸 Scoring System & Performance Rewards
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!
📜 Run History & Detailed Stats
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.
🗿 Obelisks of Power & Dark Offerings
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.
🃏 Tarot Cards & Evolution System
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.
🛠️ New Content and QoL changes in each major update!
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.
DESIGN
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.
Upcoming Features & Expansions
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.
Are You Ready to Become the Villain?
Enter the battle now. Build your legend. Dominate the world of Undead Onslaught.
🕹️ Partial Controller Support
🎮 Full Controller Support
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Undead Onslaught Update 1.4 Patch Notes
Hello, Villains of Undead Onslaught!
Update 1.4 is finally here and it is one of the most substantial updates the game has received so far. This update introduces brand-new content, expands progression, and revisits several core systems to improve clarity, balance, and long-term replayability.
Below are the full patch notes for Update 1.4.
[hr][/hr]New Map Von Eldrath Castle
A second map has arrived.
Von Eldrath Castle, the ancient stronghold of the Von Eldrath Bloodline, is now playable. The castle is currently under siege by Dwarven forces and their Fae allies.
New playable map with a unique layout and encounter flow\n Distinct pacing and enemy compositions compared to the original map\n The addition of a second map allowed us to review overall balance and smooth out progression pacing across the game
Relieve the siege of the castle and perhaps its enigmatic ruler will take notice.
She mentioned to look for her coming at first shadow on the fifth night.\nAt dusk, look to the East.
[hr][/hr]New Playable Villain Seraphyne Von Eldrath
A brand-new Villain joins the roster.
Seraphyne Von Eldrath enters the fray, hungry for the blood of the innocents.
Fully playable Villain with unique mechanics and talents\n Specializes in Bleed, Blood synergies, and riskreward gameplay\n Features a unique unlock condition tied directly to the new map
Keep a close eye while exploring Von Eldrath Castle her arrival is anything but ordinary.\n\n\nYou can read more about her here: [dynamiclink href=\"https://store.steampowered.com/news/app/2985840/view/518596658624201132\"][/dynamiclink]
[hr][/hr]New Basic Evolutions
Weve added a major expansion to basic weapon evolutions.
New basic evolutions that do not force hybrid damage-type playstyles\n Each damage type now has two new evolutions\n A total of twelve brand-new evolutions added\n Focused, single-damage-type builds are now fully viable\n Hybrid builds remain possible, but are no longer mandatory
This change greatly expands build identity and experimentation.
[hr][/hr]Onslaught System 2.0
The Onslaught system has been fully reworked.
Onslaught is now configured before the run\n Difficulty is increased manually on a per-run basis\n No longer functions as a dynamic difficulty system\n Gives players full control over challenge and risk
This makes difficulty scaling more transparent, intentional, and player-driven.
[hr][/hr]Relics Update
The Relic system has received a major update in 1.4.
Brand-new Relics UI\n Multiple new Relics added\n Balance updates to existing Relics\n Improved clarity and consistency in Relic descriptions\n Better alignment with newer damage types and build synergies
While Relics were already part of the game, this update significantly expands their impact on builds.\n\nYou can read more about the Relics update here: [dynamiclink href=\"https://store.steampowered.com/news/app/2985840/view/689735528964162149\"][/dynamiclink]
[hr][/hr]Necronomicon Overhaul
The Necronomicon has received a major visual and functional overhaul.
Completely refreshed visual design\n Improved layout and navigation\n Increased interactivity across pages and entries\n Many entries now feature short visual previews of mechanics and effects\n Clearer presentation of systems, synergies, and progression
The Necronomicon is now designed as a true in-game reference tool.
[hr][/hr]Wave Overhaul
Enemy waves have been significantly reworked.
Updated enemy compositions\n Improved enemy behavior and engagement patterns\n Better escalation of difficulty throughout a run\n Clearer identity and roles for enemy types
[hr][/hr]Talent & Build Improvements
Building on the changes introduced in 1.3.5, Update 1.4 continues refining talent structure and build clarity.
Further tuning of the new talent tree philosophy\n Earlier access to damage-type conversions\n Improved consistency across Villain talent trees\n Fewer dead or overly restrictive talent choices
[hr][/hr]\n A Note From the Team
Before we wrap this up, we want to address something openly.
We know this update took much longer than originally anticipated and were sorry about that.
Real-life obligations and unexpected pressures put significant time constraints on our small indie team, and that inevitably affected our development pace.
Undead Onslaught is being built by a small group of people who genuinely care about the game, and while were doing our absolute best to keep it evolving, future updates may arrive at a slightly slower pace than before.
That said, we remain optimistic.
The next update is currently planned to be the launch update, though depending on how things shape up, there *may* be a 1.5 update before final release. Well have a clearer picture and more concrete information by the end of Q1 2026.
Until then, thank you for your patience, your support, and for sticking with us on this journey.
Happy holidays to everyone, and thank you again for waiting with us.
Sorry for having to make you wait a bit longer but awesome things come to those who wait.
With gratitude,
The Wish App Games Team\n
Minimum Setup
- OS: SteamOS 3.0 "holo" and up
- Processor: Zen 2 and upMemory: 16 GB RAM
- Memory: 16 GB RAM
- Graphics: 8 RDNA 2 and up
- Storage: 3 GB available spaceAdditional Notes: Steamdeck Oled Tested
Recommended Setup
- OS: SteamOS 3.0 "holo" and up
- Processor: Zen 2 and upMemory: 16 GB RAM
- Graphics: 8 RDNA 2 and up
- Storage: 3 GB available spaceAdditional Notes: Steamdeck Oled Tested
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