Half-Life (Black Mesa) Walkthrough
1. Incoming Transport – Play as a young 27-year-old scientist.
2. Anomalous Materials – Main Hall of the Scientific Complex.
3. Unforeseen Consequences – After a Serious Accident During the Portal Opening.
4. Office Complex – Exit Through the Doors, Then Have to Climb Through the Window.
5. We Have Guests! – Shoot the Blue Laser from afar.
6. Firing Range – Fight Off a Whole Pack of Big-Eyed Electric Dogs.
7. Power Supply – Power the Railroad and Get Out of Here.
8. On the Rails – Ambush on the Elevator. Stop in Front of the Round Elevator.
9. Detention – Ride the Electric Train and Be Attacked by Three Soldiers.
10. Waste Processing – Take the Magnum from the Dead Guard on the Surface.
11. Questionable Ethics – go up to the room with broken animal cages.
12. Surface Tension – shoot at the explosive barrels to kill the soldiers easier.
13. Forget Freeman! – destroy the tank with a rocket launcher or grenades.
14. Lambda Core – after some time, the portal in the center will open.
Xen (2020):
15. Xen – the teleporter took us to an alien world.
16. Gonarch’s Lair – the monster spits acid, tries to ram us.
17. Intruder – appear in front of the alien factory.
18. Nihilanth – find yourself in a large hall with a huge boss hovering in the center.
19. Finale – teleport to a monorail car flying through space.