Do I need a Steam account or GSLT to host CS:S?

No. The Counter-Strike: Source dedicated server (appid 232330) installs anonymously and needs no login or game server login token.

How do friends connect?

They open the console with the ~ key and run connect IP:27015 with the address from your server card. If you set a Join password, they run password yourpass; connect IP:27015 first.

How many players can join?

Pick a size on deploy: 8, 16, or 32 players. The Source engine ceiling is 32.

Can I run custom maps like surf or bhop?

Not on this release. Custom maps need a FastDL host so players download them on connect, which is not wired yet. The full stock de_ and cs_ pool is available.

How to Host a Counter-Strike: Source Server (CS:S Dedicated)

Updated Sep 22, 2026

Counter-Strike: Source runs on Valve's Source engine (srcds), the same base as L4D2 and Garry's Mod. The server installs anonymously from Steam, so there is no login and no GSLT to manage. This guide shows the fast path: deploy a hosted CS:S server by the hour, pick your map and gametype, and give friends the address. No box to rent, no port-forwarding, no Steam client.

What you get

Source dedicated (appid 232330): CS:S dedicated server, installed anonymously. No Steam account, no GSLT.
Every stock map: All the official de_ and cs_ maps ship with the server, so nobody downloads anything to join.
Native RCON: Source RCON runs on the game port, so the web console on your server card controls everything.
AI bots on demand: Fill empty slots with bots whenever you want. See the CS:S bots guide.
8 to 32 players: Pick a size on deploy: 8p Small, 16p Medium, 32p Large.

Deploy in about 5 minutes

Open the deploy page, choose a region close to your players, pick a starting map and gametype, and start it. The server boots and shows a public IP on its card.

Region: Closest region wins on ping. Check the ping numbers on the deploy form.
Map: Default is de_dust2. Any stock map is one click.
Gametype: Bomb Defusal (de_ maps) or Hostage Rescue (cs_ maps). The map decides the mode.
Size: 8, 16, or 32 seats. You can pick per session.

Gametype and maps

CS:S has no gametype cvar. The map prefix decides the mode: de_ maps are Bomb Defusal, cs_ maps are Hostage Rescue. Switch live from the web console or in-game with rcon.

changelevel de_inferno
changelevel cs_office

How friends join

Your server sits on a public IP. No VPN, no port-forwarding. Friends open the console with the ~ key and connect. If you set a Join password on deploy, they enter it first.

connect IP:27015
password yourpass; connect IP:27015

Custom maps

Every official map ships with the server, so this covers the classic rotation with zero downloads. Custom maps (surf, bhop, community defuse) need a FastDL host so players can download them on connect. FastDL is not wired on this release, so stick to the stock pool for now.

Deploy a Counter-Strike: Source server by the hour