Game developers have been running into refusals from Claude Code since late October, and some of them say the projects they are blocked from building are legitimate. Tom’s Hardware reported the complaints on Saturday, citing a wave of issues posted to Claude Code’s public GitHub tracker. Tom’s Hardware reporter Bruno Ferreira wrote the story, and TNW separately read the issues.
Anthropic has not announced a change. Its Claude Code changelog does not mention one, and Tom’s Hardware said the company has not issued an official statement.
Why is Claude Code refusing game development work?
The clearest account comes from the owner of Conflict Simulations LLC, which builds personalized digital versions of board wargames for clients who already own the games. Around October 27, the developer wrote in a GitHub issue on October 30, Claude Code began receiving “a server-side instruction” to refuse game work. Sessions now decline the work and cite an instruction against reproducing games.
“A blanket category rule against ‘games’ cannot tell the difference between piracy and commissioned professional work for a game’s owner,” the developer wrote.
In a follow-up update, the developer described a puzzling sequence. The sessions kept doing the work after the rule reportedly arrived. The refusals started only after the developer asked Claude to check whether the rule affected their projects. They have continued in new sessions on the same code. One commenter suggested that the project’s memory or Git history might now be carrying the refusal forward, and the developer said they would try to clear it.
The developer says Anthropic’s support bot told them the policy applies to all customers with no exceptions. Both support tickets were later passed to staff, and the developer has filed an appeal. They are asking Anthropic to narrow the rule so it targets real copyright infringement, and to create a verification process for professional developers.
Not everyone in the thread sided with the developer. One commenter argued that unless the work is being done for the rights holders, it is no different from any other reverse-engineered port.
Are other developers seeing Claude Code restrictions?
Other developers have reported a separate kind of block this month. Claude Code’s cyber safeguards flagged anti-cheat code in one developer’s game and a security review of another developer’s own game. Tom’s Hardware said the timing of the two kinds of restrictions may be a coincidence.
Anthropic has said its generally available models include conservative cyber safeguards that block most cyber work. On October 6, the company expanded its Cyber Verification Program, which lifts some of those blocks for vetted security teams. Members of Project Glasswing, the company’s earlier program for its Mythos model, move into the top tier of that verification system.
The company is also facing legal pressure over copyright. A lawsuit filed in October over 274 Elvis Presley songs is pending. Separately, a tampered Claude Code extension reached Cursor users on October 29.
Has Anthropic said whether a game rule exists?
For now, the developers who say they are being blocked have few answers. Anthropic has not said whether the game rule exists, and it has not said whether an exemption path will be offered.
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