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.
Hello, Villains of Undead Onslaught!
Were excited to unveil the first glimpse of Update 1.3.5, coming to Early Access very very soon! This mid-season patch focuses on one of our most-requested features: **a brand-new fourth row of talents** for every Villain, unlocking powerful new build synergies and playstyles. Read on for a sneak peek at whats coming!
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Lord Cinderhell
Cinderhell fans, rejoice! Youll finally be able to supercharge Hellbreath builds with the new Scorching Dominion talent.- Scorching Dominion adds an extra synergy with Cinderhells class mechanic, vastly improving the spread and potency of your Burn effects.

Pair it with your existing Burn-over-time talents for massive area-of-effect devastation. ---
Zargoth the Stormcaller
Our resident evil shaman will have his unqiue Passive "Elemental Mastery" improved in it's base form to:1. Replace Physical damage bonus with Frost damage in its base form
2. Temporarily supercharge all bonuses whenever a Blood Drop is picked up
And now a new suite of talents to further empower his Elemental Mastery passive will be available:

Choose talents that boost your favorite elementfire, frost, or lightningand add new strategic layers to your shamanic build. ---
Vespera Darkmoon
Even our creepy dark ranger gets more toys to play with. Vesperas Shadowbarb Chains with her new talents would have extra optional effects to:
Experiment to find the perfect balance between offense and elusiveness. ---
Cordemal the Cold
The Frozen Magus embraces darker powers! New talents let Cordemal:- Cordemal's abilities will now count as Both Frost and the new Blood damage type coming in the next update!
- Use Potion for additional boost of Blood damage type weapons!
Mix and match to create efficient blood-chilling builds.

---
Rend Warbringer
Rends rage now shocks the battlefieldliterally. His new talents allow you to:- Add Shock damage to all his Unique abilities
- His basic attacks gain a ranged component!
Unleash electrical fury alongside your trademark berserker onslaught.

---
And More for All 11 Villains!
Every Villain in the rosterfrom Forgotten the Spectral Knight to Aurelian of the Sunfallwill receive a brand-new fourth row of talents. That means dozens of fresh build combinations to discover and master!---
Next Up:
Well be diving deeper into the biggest talent overhauls, as some Villains will be receiving major changes to their extsting options, while also breaking down how these new talent options will reshape endgame strategies. Stay tuned, and as always, let us know which builds youre most excited to try on our Discord!With gratitude,
The Wish App Games Team
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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