S.T.A.L.K.E.R. Shadow of Chernobyl.
You get to an area where there is a scientist who also sells things,and after you talk to him you must gain access to an underground complex.
Walking your way to the underground complex is like a punishment.
It's full of zombies with guns and some mutants named snorks.
Snorks are bullet sponges,they take many bullets to die but they don't ever leave any ammo.
First time I tried to get to the underground complex I ran out of ammo relatively quick and without ammo in that game you are already dead.
After trying a few times,I loaded an older save and went to the scientist and bought all the ammo he had for my weapon,an AK74.
With roughly 550 bullets I then went to infiltrate the complex.
On my way there I found some zombified stalkers waiting for me at another place they did before and after a surprize attack I died again.
I then proceeded carefully and shot them down.
I kept progressing and with assault rifle ammo being so scarce,I was left just with pistol ammo once more,even after having bought all the ammo the scientist had.
After many deaths and hard tries to get in just by using what I was left with I finally managed to get inside the underground complex,hoping there will be some ammo waiting for me inside.
Being able only to use my good almost for nothing pistol,I walk down the stairs,look at the dark room in front of me and slowly proceed. BAM!
In the first room of the complex there are about 3-4 dudes hidden in the shadows at different directions.
Each one of them require about 1 or 1,1/2 assault rifle magazines to drop dead,and I only carry my little pistol with me,while I die from just one or two 3 bullet bursts from their rifles.
Each one is in a different direction which means that as long as you are facing one to kill him,the others will be shooting at ya.
Killing just one of them with the pistol takes much longer time that what it takes for them to kill you.
There aren't enough cover spots in the room,and if you get in to let them see you and then go back out of the room,the enemies won't follow you out of the room as they do in most games,so you can't lure them to fight them one by one.
And then is that I think "Im F@CKED!".
I bought all ammo the scientist had,what else should I do ? Load an even older save and start the game 2-3 regions ago just to buy all ammo from all traders exist in the game ?
I thought that the computer players where cheating me and I decided to treat them the same way so I downloaded a cheat mod that gives you a super powerful gun with 1000 shots.
Then I passed it.
Note: I don't like cheating in my games or installing modes on a first playthrough,but when a game ends being just frustration instead of fun,and I start feeling that only a masochist would have the nerve to play such a difficult game to the end,I'll do it.