Secret #12 – In the corridor filled with human skeletons, check the skeleton slumped in the far left corner. It has a yellow glow. Click on it. You get a keycard (usable later in Mission 15) and 500 credits. Mission 15: Military Depot Secret #13 – The CCTV Room After clearing the hangar, go up the stairs to the observation deck. There is a door labeled "Security." It's locked unless you have the keycard from Mission 13. Use it. Inside: Sniper Rifle and a Scope upgrade.
Secret #14 – Outside, in the tank farm, circle around the largest spherical tank. A ladder goes down to a drain. Not a ladder—a hidden passage. Go down. Contains $2000 credits and a Heavy Armor Vest . Mission 18: Laboratory Complex Secret #15 – The Freezer In the cold storage room (steam coming from floor), the back-right freezer unit is not operational. Open its door (use key). Inside: Cryo Grenades (freeze enemies) and a Energy Shield. alien shooter 2 reloaded all secret place
Secret #5 – In the large circular room with four tunnels, look for a drain pipe on the north wall that has water trickling out (most don't). Shoot the grate. Behind it: 2x Frag Grenades and a Energy Cell. Mission 7: Research Center Secret #6 – Computer Core Cache In the room filled with blinking mainframe computers, destroy all the monitors on the central console. One of them shatters to reveal a hidden slot. Contains: Upgrade: Running Speed +1 . Secret #12 – In the corridor filled with
Secret #7 – After the room with the first Scientist NPC, instead of taking the obvious door, turn right. A vent cover is loose. Crawl through. Leads to a small room with a Rocket Launcher (with 3 rockets). Mission 9: The Bridge Secret #8 – Under the Truck Before crossing the large broken bridge, go down the rubble to the dry riverbed. An overturned military truck has its rear hatch open. Crawl inside. Loot: Assault Rifle (AK variant) + 60 rounds. Act 2: Reloaded & Dangerous (Missions 11–20) Mission 11: Underground Bunker Secret #9 – The Armory False Wall In the main armory (where you see rows of empty gun racks), the back wall has a seam. Shoot the seam. Hidden room contains a Combat Shotgun (much better than the pump-action) and 24 shells. You get a keycard (usable later in Mission
Secret #10 – Near the elevator exit, there is a stack of three green crates. Destroy the middle crate with your weapon. It's not solid—behind it is a pile of 300x 9mm rounds. Mission 13: Alien Hive Entrance Secret #11 – The Organic Wall This mission introduces organic hive walls. Most are just scenery. However, in the first large cavern, look for a pulsating purple membrane that is darker than the others. Shoot it. Behind it: Flamethrower Fuel (200 units) and a Medkit.
Secret #16 – In the room with the destroyed elevator, look up. There's a maintenance shaft. Shoot the metal grating. Then jump down the shaft (you'll take slight fall damage). At the bottom: Minigun (premium weapon, 500 rounds). Mission 20: Queen's Antechamber Secret #17 – Egg Sac Nursery Before the boss room, there is a side passage blocked by small alien egg sacs. Burn them with the flamethrower. Behind them is a hidden shrine. Contains: Health Regeneration Implant (passive item – heals 1 HP every 5 seconds). Act 3: The Final Stand (Missions 21–30+) Mission 22: Reactor Core Secret #18 – Coolant Pipe Junction In the massive reactor room, follow the glowing blue pipes to the far northwest corner. One pipe has a broken valve. Turn the valve (interact). A wall panel slides open. Inside: Railgun (extremely rare) + 10 cells.
Use this guide to systematically clear each mission, but don't be afraid to explore on your own—the developers hid a few bonus easter eggs even this guide hasn't fully mapped. Keep your trigger finger ready, your eyes on the walls, and happy hunting, Commander. The Earth needs you. Did we miss a secret? Some players report a hidden plasma rifle in Mission 17 behind a waterfall texture. If you find it, let us know in the comments!