Copy and pasted from http://www.cstrike-planet.com/tutorial/1-Introduction

So how many people can a vps host?
With 128mb, 256mb, 512mb etc

Its not really the ram that u are worried about but I would suggest around 1GB for 10-15 people or more.
I dont think 158MB would be really good to host one but you could do some further resarch to try and figure it out. I usaly use about 1-2GB of ram when I do it. I usually do 32 slots.

I run a css with 256mb of ram with 8 slots

Linux:
http://freevps.us/thread-3528.html

Windows:
http://freevps.us/thread-3527.html

thanks casper, that is the answer i want to hear

Your welcome buddy

I managed to run those servers with 768MB RAM:

- 1x16 Slots Counter-Strike: Source server
- 1x24 Slots Counter-Strike 1.6 server
- 1x16 Slots The Specialists 3.0 server

What do you think? I think that's quite awesome for 768MB RAM and some AMD Athlon II with 2x2.10GHz.

Lolz to the admin who deleted my forum, you're just giving the other website more traffic.

so you are all c-s funs, i am warcraftIII funs