Chimera CUSTOM XG Patch Notes — February 6, 2026
Aggregated from Steam, cross-tracked with Battle.net coverage on GamePatchNote.
Biomes, Bosses, and more!
Our biggest update of early access yet has arrived. We have a brand-new pipeline meaning faster updates, and more action as we march toward full release. Let’s talk about what just dropped and what’s up next.
Three brand-new biomes to explore!
Four new bosses to battle!
You can now battle through the blood soaked sands of Giza, mysterious jungle mountains of Peru, and the icy peaks of Antarctica. And then restart the loop to do it all again for the thrill. Each biome will hit you harder, with beefier enemies, bigger crowds, and combat that won’t let you catch your breath.
Every biome finishes with a brand-new boss built for its setting, each with their own method of combat that only gives you time to react. Enki has been moved to his rightful home you will discover later, with Eryngii now at the end of Los Angeles II. Cragback the Reptoid Tank awaits you in Giza, and Blaidwraith the Mantis Elite is ready to duel in Peru. The hardest boss of all is prepared to destroy you in Antarctica, Waldorf has no room for mercy. Explore each biome to fight the boss and take their genome bucks!

More weapon refinement!
Andi’s shop has new modifications to customize your weapons and every mod can apply to every weapon. Slap a sniper scope on an SMG for more accuracy, the enemy can’t judge if they’re dead. Put an extended mag on a revolver to yee-haw to the max. Did an Xtreme Greatness weapon drop for you? They can be modded too!
Some new toys you can play with:
Compensator: +20% Crit Chance
Tracking Scope: Mark an enemy for death to lock in guaranteed crits.
High Caliber Rounds: +30% Damage
Every mod stat, no matter if it’s the scope, barrel, or magazine slot, adds on top of each other. Craft a weapon that is scary accurate with hip fire or a bullet throwing monster that doesn’t care about the expense budget. There is something for everyone’s playstyle.

More gene augments!
Unlock new genetic augments in Cobb’s lab with Genome Bucks which are earned with each room cleared and every boss annihilated! Randi has a few buffs, and their XG versions, ready and waiting for you, too. With 5 new buffs and 11 new gene augments, the combo possibilities have grown exponentially.
Here’s a list of a few you can unlock:
Explosive Payload: All bullets explode!
Enhanced Cerebellum: Heal 5% of your health with every successful dodge of an attack.
Stunning Reflex: Every successful doge causes a flash bang explosion!
Cluster Bombs: Throw 3 grenades for the price of one.
Cryo Cyclovergence: Critical hits cause frost explosions!
Find your favorite mods, augments, and buffs to customize your loadout on the fly. This is the most content we’ve ever dropped, and there’s another biome and a whole new loop track on the way. Grab three of your friends and check out what's available now!
Future Updates
As we move forward with our updates we’ll be squashing bugs and spit-shining as we go. Our next big area of focus is balancing the difficulty and smoothing out the learning curve. We want to let you gain a foothold to stand on before facing the full force of the inter-dimensional alien hordes! So let us know your thoughts, your feedback will help shape the game! There’s a lot more on the way, and we can’t wait to show you. Stay tuned!
With Love,
The Volok Team