The mysterious Oasis is one of the light legends of the gloomy and inhospitable Zone of Exclusion. They say that he heals any wounds, that peace and tranquility reign there, and even monsters are friendly to humans. Whether this is so remains to be seen by the player.
Search for an Oasis on earth
When, in your wanderings around the Zone, you visit the bunker of scientists, Professor Ozersky will give your hero a quest to find the mysterious Oasis. To get at least some information about him, ask stalkers from different groups about it. From these inquiries, you will learn that the Oasis definitely exists, but its location remains a mystery.
The most likely location for it will be a ventilation complex. After exploring the vast area, you will not be able to get inside, although there are definitely some rooms below.
If unsuccessful, turn west and reach the old halt. Go inside and take a look around. There are too many doors and monsters for a normal half-station, so look for those passages that lead down. Shoot or smash the boarded up door with a knife and fight the zombie stalkers behind it.
Search for an Oasis underground
The fighting in underground tunnels is very intense. Zombie stalkers are dressed in exoskeletons and armed with powerful weapons. Shooting at the body, it will be difficult to harm them, and their response bursts can tear the player in a narrow tunnel to pieces. The best option is to precisely hit them in the heads with bursts, however, everything is not so simple here either. The jerboas that flooded these tunnels strive to bite into your legs, knocking down the sight. The player will have to spin all the time, aiming at zombies and having time to shoot nimble monsters.
After passing through a living barrier of monsters, from all the passages, choose those that lead down and east, to the ventilation complex. The end of your wanderings will be a corridor with an emergency light, where autosave will catch you.
Enter a dark room with rows of columns. In order to reach the end of the hall, you need to choose the correct passage between them. If you fail, you will be teleported to a room with an emergency lamp.
To go through the hall to the end, go as follows: go through 1 row of columns through 2 passage on the left. In confirmation that you did everything correctly, the passed arch will begin to glow with a ghostly light. The 2nd row of columns go through the 4th passage on the left. The 3rd row of columns can be walked through the 3rd passage. Last, 4th row, go through 1 arch.
You will now enter a large room with a strange glowing plant in the middle in a puddle of water. Coming closer, you will be able to identify it as the "Heart of the Oasis" artifact.
Pick up the artifact and rush to the stairs leading up. Ignore the monster that appears - it is immortal and your only salvation is in speed. Climbing the stairs, you will find yourself out of the reach of the creature. Climb to the exit and tell Professor Ozersky about the found Oasis.
