The Once Human March 27th Update is here, and it’s packed with exciting changes and features that are set to shake up the game. The update aims to shift the way contamination and pollution work in the game. Additionally, new tactical items, weapons, and ammo have been added that could overhaul the combat system. Let’s break down everything you need to know about the Update, from tactical gear reworks to new mechanics and more.

Once Human March 27th Update: New Anti-Type (AP) Ammo Overhaul
One of the biggest highlights of the Once Human March 27th Update is the complete overhaul of tactical gear and ammo systems. Gone are the built-in anti-type effects on weapons. Instead, damage modifiers will now depend on the type of ammo you craft. This means that whether you’re using shrapnel, burn, or frost vortex ammo, the effects will work seamlessly across all weapon types.
These new AP Ammos are called Suppression and Penetration. We can use stardust ingots to craft Suppression AP Ammo. Which deals increased damage to deviants. We can use the control units to craft Penetration AP Ammo. Which is stronger against humanoid enemies like Rosetta and Bandits. This fresh new AP Ammo system could make the gameplay a lot more dynamic.
New Tactical Items for PvE
The Once Human March 27th Update also introduces new tactical items, exclusively for PvE gameplay. One important addition is the Shield Matrix, a deployable barrier that blocks incoming bullets while allowing you to fire back. It’s omnidirectional, meaning it protects you from all sides. It is perfect for those intense battles in Nightmare difficulty. However, enemies can still pass through, so watch out.
Another exciting item is the Mr. Wishes Rocket Launcher, which fires player-guided missiles. This could be an exciting and fun way of taking down huge bosses. Lastly, for deviant crowd control, we have the brand new Wildfire Flamethrower. Yes, a literal flamethrower that offers extended range and heat buildup, making it ideal for taking down groups of enemies. Exciting additions, to say the least.
New Memetic Specializations in Once Human March 27th Update
The Once Human March 27th Update brings new Memetic specialization gear designed to tackle Prime War challenges. Currently, only Biomass missiles and Plasma rounds are effective against Manabus’s Silver Plague shields. The update introduces Red Plasma Rockets Warheads Specialization, Red Plasma Grenade Specialization, and Red Antiviral Ammo to add more strategic options. These new tools are specifically designed to shred through Silver Plague shields and deal heavy damage to original entity bosses.
Pollution and Contamination Zone Reworks
Pollution and contamination zones will also receive significant changes in the upcoming Once Human Update. Stardust ore now suppresses contaminations and weakens deviants when placed. Mining Stardust will temporarily increase with contamination levels, adding a strategic management layer to these zones.
The sanity system has been revamped as well. Base sanity is now set at 1,000, but it drains dramatically based on contamination exposure. To counter this, a new structure called the Veil of Tranquility reduces the sanity drain and weakens deviants within its radius. These changes make pollution zones more challenging but also more rewarding, encouraging players to think carefully about their exploration strategies.
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Early, Mid, and Late Game Adjustments
The Once Human March 27th Update includes several tweaks to balance progression across all stages of the game. Early and mid-game players will benefit from a 20% increase in Stardust Source drop rates and energy link spawn rates, making the grind a little less tedious.
For late-game players, there’s a 10% decrease in Stardust Source and energy link availability to balance progression. Additionally, pollution zones now offer higher-value items but with longer respawn times, ensuring that these areas remain challenging yet rewarding.
Once Human March 27th Update: Mod Conversion Overhaul
Mod conversions have also been improved in the Once Human March 27th Update. There’s now a higher chance of obtaining epic mods, and converting high-level mods grants better-quality results. These changes make it easier to target specific upgrades, allowing players to fine-tune their gear more effectively.
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Final Thoughts
The Once Human March 27th Update has a lot to offer, which mainly focuses on the game’s environment and combat system. We will get another update for character sharing, assets, furniture, and more; however, those will be different. These updates are more focused on the core gameplay, which can improve the overall gameplay. Or at least make it more dynamic and enjoyable for both old and new players.
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