Valve may block CS:Legacy over IP violations

The developers of the fan remake Counter-Strike 1.6 have encountered an unexpected issue: according to a Valve representative, using the Counter-Strike IP might be prohibited without a separate license. This casts doubt on the release of CS:Legacy, despite the team following all Source SDK license terms and Steamworks guidelines from the very beginning.

How It All Began

CS:Legacy is an attempt to revive a classic in modern form. The game is being developed on the Source SDK 2013, is distributed for free, and doesn’t use any third-party resources: all models, interface, visual design, and code are created from scratch. The development team includes the same people who previously worked on CSPromod, another fan-made shooter that once peacefully coexisted with Valve and had 10 public versions.

From day one, the developers closely adhered to Valve's licensing policy, believing that the current SDK allowed them to create a CS-inspired game. However, they recently received a message from a Valve representative warning that further use of the Counter-Strike IP without a separate license might not be acceptable.

What Happens Next

After receiving the message, the team reached out to Valve’s legal department to get an official position. While awaiting a response, development is currently on hold. To prevent speculation, the team made a public statement on social media and began refunding all previous donations — most of which have already been automatically processed.

The developers emphasize that they were prepared for such a scenario from the beginning: all project content belongs to them, not Valve, and CS:Legacy can easily evolve into an entirely new game with its own IP. If Valve ultimately forbids the use of CS, the team plans to switch to another engine (Godot is the top choice, but Unreal Engine is also under consideration) and start development on a new title from scratch — while preserving the essence of classic shooters.

In the near future, the developers plan to upload the current CS:Legacy build via Steamworks and wait for Valve’s response. If it's positive, early access will take place in 2026. Otherwise, development of the new project will begin immediately.

Even if CS:Legacy is never released, fans can expect an equally exciting alternative — a new competitive FPS inspired by the classic CS 1.6 gameplay. The developers promise a “cinematic” visual style reminiscent of 90s action movies, extensive modding support, dedicated servers, and that signature old-school gameplay — with clear shooting, wall penetration, and an honest engine.

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