Tim Sweeney slams Valve over 'irresponsible' Steam AI policy

Tim Sweeney, CEO of Epic Games, openly criticized Valve in an interview with PC Gamer. He called Steam's policy on generative AI "very irresponsible" and urged the entire games industry to rethink its attitude toward the technology. According to Sweeney, the problem isn't only Valve: game development as a whole is too afraid of AI.

What's wrong with Valve's approach

Over several years, Steam has built an increasingly strict regime for AI content. The platform requires developers to disclose exactly which generative tools they used to make a game, whether for art, music, dialogue, or code. Content generated live during a play session faces even stricter requirements: Valve reviews those cases separately and weighs the risks of copyright infringement and objectionable output.

Sweeney says the issue isn't the rules themselves but the signal they send. Steam is the world's largest PC store, so its stance automatically becomes a benchmark for the rest of the industry. When the leading platform treats AI with suspicion, publishers, investors, and other storefronts adopt a wait-and-see approach too. The result is a chain reaction of caution exactly where the industry needs confidence.

That's why Sweeney chose the word "irresponsible" rather than "cautious." In his view, this isn't measured prudence but a refusal to lead at a critical moment for the industry. The technology is already here; the only question is who learns to use it properly first.

How Steam's policy works in practice

Valve splits AI content into two categories with different requirements:

• AI during development — textures, models, scripts, voice-over. Disclosure is mandatory, but there's no outright ban.
• Real-time AI — content generated live during a play session. Requires separate approval from Valve.
• Games that use AI without disclosing it may be pulled from sale after review.
• Ambiguous cases take longer to review, which delays releases.

For large studios with legal teams, all of this is manageable. For indie developers, it's a serious barrier: many say outright that they avoid AI tools just to stay clear of publishing problems on Steam. In effect, the platform's policy holds back experimentation with the technology, which is exactly what Sweeney is warning about.

Epic's position: a different direction

Epic Games is actively building generative AI into Unreal Engine. The available tools include procedural texture creation, animation generation, character voice synthesis, and rapid level prototyping with neural networks. Epic is also developing AI assistants for writing shaders and for automatically populating game worlds with environmental detail.

The company sees the technology as a way to lower the barrier to entry for game development. A small team of five people using Unreal Engine's AI tools can build what once took dozens of specialists and several years of work. That fundamentally changes the economics of making games.

Meanwhile, the Epic Games Store places no restrictions based on AI use. Sweeney has consistently argued for embracing generative technology as a tool for creators, not a threat to them.

What it means

Public criticism from one of the industry's leaders reflects a growing split in game development. Some companies see generative AI as a legal and reputational threat and put up barriers. Others see it as a competitive advantage and build pipelines around it.

Steam's stance carries particular weight because the platform controls access to the world's largest audience of PC gamers. Until Valve revisits its approach, developers will steer clear of AI tools — not out of conviction, but out of pragmatism.