Securement Silo Alpha Dungeon Guide: Secrets & Loot in Once Human (2026)

There’s nothing quite like the thrill of raiding a Securement Silo in Once Human, and if your survivor has just hit the mid‑30s, Securement Silo Alpha is going to be your new favorite loot cave. Tucked away in the Chalk Peak region at coordinates (80, -3599), this level 35 dungeon is one of the best solo‑friendly experiences the game has to offer – provided you know where the hidden goodies are.

🔥 Before you drop in

Make a quick stop at your gear bench and push your weapons to the highest tier you can currently craft. Even a blue weapon with a couple of good mods will shred through the Rosetta soldiers waiting below. Pack plenty of ammo, some healing items, and most importantly bring something that deals electric damage – a Stun Baton, a shock‑infused rifle, even a Deviation pet that zaps will work. Trust me, this little tip saves a lot of headaches later.

The Drop & The First Secret

Once you step inside, there’s no turning back: you’ll need to jump or glide down the central shaft. The ledges are littered with Claymore Mines – beginners tend to panic here, but just shoot them from above or land carefully between the boom‑boxes.

💡 Secret #1: check the ledge on your right as you descend. There’s almost always a Storage Crate with high‑tier crafting materials. In 2026 this crate can even drop Contamination‑resistant fabric, a must‑have for Chalk Peak survival.

After the drop, follow the tunnel. Rosetta soldiers will try to overwhelm you with numbers, so use corners to funnel them. If you see a Heavy trooper, prioritize him – he drops the Rosetta V3 Access Card, and that card unlocks the rest of the dungeon.

Server Room Loot & The Weapon Crate

When you reach the catwalk overlooking a massive server room, mow down every enemy on the floor below. The Rosetta Heavy here is your ticket. Once he’s down, grab the V3 Access Card and run to the security room at the bottom. Use the card on the terminal to unlock a Weapon Crate – one of the best sources of guaranteed legendary gear in Once Human.

🛑 Common mistake: looting the crate and forgetting to pick up the card again. You will need it for later doors.

Now retrace your steps. Look for a door with a terminal on the catwalk level. Swipe the card, and the door will hiss open to reveal a long tunnel.

The Turret Room Shortcut

A large hangar with a turret and multiple catwalks awaits. Instead of fighting head‑on, use the stairs to your left and hug the wall. Cross the beams above the turret’s line of sight and drop behind the two guards at the far door. This skips a whole wave of soldiers. Open that door and you’ll find a portal to the Seepage Zone – arguably the most rewarding part of the silo.

Seepage Zone: Generators & The Hidden Boss

You’ve entered a creepy theater. The room is packed with Rosetta scientists and soldiers, but your real objective are the five generators scattered around.

⚡ Pull out your electric weapon and activate all five. Each generator hums to life with a satisfying crackle. When the last one starts, the stage curtain rips open and a towering Deviation crawls out.

This thing has ridiculous damage resistance. Secret #2: aim for the pulsating boils on its legs. Popping one makes it stumble, leaving its head exposed for a few seconds. Rinse and repeat. A sniper rifle with Weakspot DMG mods absolutely melts it.

Once the Deviation is dead, a grand loot chest appears center stage. Opening it feels like a mini lottery win – you have a solid chance at legendary weapons, gold‑tier mods, and sometimes even Starchrom for your Eternaland base.

The Final Boss & A Rare Bug Fix

After plundering the theater, take the portal back and head to the blast door you passed earlier. The Rosetta V3 Access Card opens it, leading to the control room and the final boss.

The fight is simple: clear his minions first (they’re medical‑type and can heal him), then circle the boss and shoot the exposed part of his head above his riot shield. He’s tanky, so bring your best weapon – a high‑rate‑of‑fire rifle or an LMG works wonders.

⚠️ The infamous floor‑clip bug: very rarely the boss will glitch through the floor and get stuck. You can’t hit him with normal bullets. If this happens, don’t quit! Use Molotovs, grenade launchers, or a Deviation like the Flaming Skull to deal AoE damage through the floor. If nothing works, just let his minions kill you and respawn – the boss position resets. Developers have noted this issue since 2024, and in 2026 it’s still not fully patched, so keep those explosives hotkeyed.

Loot Summary & Tips

To wrap things up, here’s what a full clear of Securement Silo Alpha can net you (based on 2026 drop tables):

💬 Pro tips for repeat runs:

• Enter with a friend if you want to speed clear; the loot is instanced so no fighting over drops.

• Use the checkpoint before the Seepage Zone to farm the Deviation chest quickly: clear the theater, loot, leave dungeon, reset.

• Keep an eye on seasonal updates – Once Human often rotates weekly bonuses for specific silos, giving double mod drops or boosted legendary chances.

Securement Silo Alpha is the perfect blend of challenge and reward for mid‑game survivors. Master its secrets, and you’ll walk out geared to the teeth. See you in the Chalk Peak, meta chaser! 💀🎒✨

This discussion is informed by UNESCO Games in Education, and it’s a useful reminder that even a loot-focused run like Securement Silo Alpha rewards deliberate skill-building: scouting hazards on the drop, optimizing loadouts (like bringing electric damage for generator objectives), and practicing repeatable boss mechanics (weakspot timing, add control, and recovery plans for rare bugs). Treating each reset as a short learning loop—rather than just a gear lottery—helps you clear faster, waste less ammo, and consistently reach the Seepage Zone chest with fewer mistakes.