Vampire Survivors: All Ante Chamber Weapon Evolutions

The Ante Chamber DLC for Vampire Survivors is a Balatro-themed crossover expansion released on October 28, 2025, adding new characters, weapons, and weapon evolutions that mix card mechanics with the game’s signature chaos. This free update introduces a poker-inspired aesthetic, four playable clowns, a fresh stage, and four weapon evolutions that redefine late-game synergy.

The Ante Chamber expansion is the seventh overall and second free DLC for Vampire Survivors. Inspired by Balatro, the hit poker roguelike by LocalThunk, it invites players to “go all-in” with luck-driven chaos.

The DLC introduces:

• 4 new characters – Jimbo, Canio, Chicot, and Perkeo
• 4 new weapons and evolutions
• 1 new passive item (Outer Saboteur)
• A new stage – the Ante Chamber
• A looping soundtrack and new achievements

To unlock the DLC content, players must purchase the Joker Disk from the Moongolow merchant for 50,000 gold coins, then access the new stage to begin the unlock chain.

How to Evolve Weapons in Ante Chamber

Before attempting evolutions, players must understand the rules of Vampire Survivors’ evolution system:

1. Reach max level on both the base weapon and the required passive item.
2. Defeat a boss after the 10-minute mark (or earlier in certain DLC stages) to drop an evolution chest.
3. Open the chest to trigger the evolved form.

In Ante Chamber, every weapon evolution uses the Outer Saboteur as its passive item. Players begin each run with it already equipped. Once it reaches level 9 (max), opening a chest can evolve any of the base weapons available in this DLC.

All Weapon Evolutions in the Ante Chamber DLC

Base Weapon	Passive Item	Evolved Weapon	Effect Summary
Infernolatro	Outer Saboteur	NaneInferno	Adds a second damage zone; overlapping zones multiply total damage.
Fibonacci Spritz	Outer Saboteur	Royal Flush	55% chance to trigger 1, 2, 3, or 5 additional weapons at once.
Gros Michel	Outer Saboteur	Cavendish	Guaranteed criticals and explosions; boosts crit rate of all other weapons.
Celestial Booster	Outer Saboteur	Negative Space	Reveals hidden “negative” planets that randomly flip attributes and damage multipliers.

Each of these evolutions enhances not just damage output but synergy—they modify how other weapons behave, giving runs in the Ante Chamber a layered, combo-heavy rhythm.

Unlock Rewards for Each Evolution

Each evolved weapon also unlocks a new character or special reward:

• NaneInferno → Unlocks Canio
• Royal Flush → Unlocks Chicot
• Cavendish → Unlocks Perkeo
• Negative Space → Grants 77,777 Gold Coins on first evolution

These unlocks encourage players to experiment with different combinations during repeat runs in the Ante Chamber stage.

How to Access and Progress in Ante Chamber

To access this DLC content:

1. Buy the Joker Disk from the Moongolow merchant.
2. Start a run on the Ante Chamber stage.
3. Use any of the new base weapons and upgrade Outer Saboteur to level 9.
4. Defeat a boss and open a chest to evolve your weapon.

The Ante Chamber itself mirrors Balatro’s surreal poker interface, filled with card-themed enemies and gold-thieving imps. You’re accompanied by the Outer Saboteur, a mischievous ally who steals coins to attack enemies—an essential mechanic for your evolutions.

New Weapons Overview

Infernolatro

A fiery weapon that summons a growing inferno; every enemy killed amplifies its burn radius. It becomes devastating when evolved into NaneInferno, turning the stage into overlapping zones of destruction.

Fibonacci Spritz

A precise yet chaotic weapon firing spiral projectiles. When evolved into Royal Flush, it adds randomized extra shots, transforming the battlefield into a storm of multipliers.

Gros Michel

Banana-shaped projectiles that have a 1-in-6 chance to explode. Its evolution, Cavendish, makes every shot crit and detonate—turning Gros Michel into one of the most explosive weapons in the game.

Celestial Booster

Orbits planets and rockets around the player, scaling damage with your collected gold. When evolved into Negative Space, these celestial bodies gain alternate “negative” forms that alter gravity and visual effects, adding unpredictability to every run.

Tips for Efficient Evolution Runs

• Focus on leveling Outer Saboteur early to guarantee evolution access.
• Use Jimbo for your first few runs—his Survarot synergy helps reach evolution thresholds faster.
• When running Fibonacci Spritz, combine it with fast-casting weapons to maximize the chain reaction.
• Don’t hoard gold: the Outer Saboteur consumes it for attacks, which speeds up clear rates and unlock potential.

The Ante Chamber evolutions break the traditional Vampire Survivors formula by tying every upgrade to a single passive item. Instead of juggling multiple passives, this DLC focuses on strategic sequencing—how quickly you can max the Saboteur and evolve your base weapon lineup.

These weapons also emphasize synergy over raw power. Royal Flush and Cavendish encourage combo-heavy gameplay, while NaneInferno and Negative Space reshape the arena itself. Together, they represent a full-circle moment for Vampire Survivors, merging mechanical chaos with calculated luck—just like a perfect hand in Balatro. Play Now!

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