Counter-Strike: Source

Team-based tactical FPS with competitive matches and Source-engine physics

Valve · Released Nov 1, 2004

Reviews: Overwhelmingly Positive; 96% of 193K
Recent reviews: Overwhelmingly Positive; 95% of 622 in 30 days
Playing now: 1,597; peak 24h 1,706
Steam Deck: Playable
Last update: 6 days ago; Sep 16, 2026

What is Counter-Strike: Source?

A team-based first-person shooter centered on competitive multiplayer matches. Opposing teams use firearms, movement, and coordination to complete objectives across maps, with Source-engine physics affecting play.

For you if...

+you enjoy tactical shooting built around coordinated team play
+you like community servers, custom maps, and gameplay mods
+you prefer competitive matches without cosmetic or gambling systems

Not for you if...

−you want a story-driven single-player campaign
−you prefer relaxed solo play over team competition

What players say

96% of 193,336 reviews are positive · 95% of 622 in the last 30 days

Players praise the movement, gunplay, physics, maps, and support for custom content. The dominant complaint is that the server browser is flooded with fake, bot-filled, or heavily modified servers, making normal matches with real players hard to find. Some players also report crashes.

Screenshots and trailer

Counter-Strike: Source system requirements

As published by the developer.

Minimum

1.7 GHz Processor, 512MB RAM, DirectX® 8.1 level Graphics Card (Requires support for SSE), Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection Recommended: Pentium 4 processor (3.0GHz, or better), 1GB RAM, DirectX® 9 level Graphics Card, Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection