Digital Sun, the studio behind the action RPG Moonlighter, has altered plans for a public playtest of its upcoming "tower defensevania" title, ReVamp. This decision comes in response to the growing threat of AI-powered game cloning, a phenomenon recently amplified by the capabilities of Anthropic's Claude Opus LLM.
Originally intended for a broad audience via Steam, the ReVamp playtest will now be a more restricted event hosted on the developer's Discord server. "We’ve been concerned by the recent news of games being reverse-engineered, cloned and published before the original is even out," Digital Sun stated in an update on its X account. The studio expressed its gratitude to the many players who signed up for the initial Steam playtest, apologizing for the change in plans.
The core issue lies in Claude Opus 5.5's advanced ability to decompile and recompile game code with remarkable efficiency, a task that previously demanded significant time and expertise from human developers. This has led to a surge in playable browser-based versions of existing games, a development that Digital Sun is keen to avoid for ReVamp, which is slated for a March 2027 release. Providing early access to the game now represents a substantial risk.
Digital Sun hopes to open a more extensive public playtest around January and encouraged interested players to sign up for the Discord playtest before October 29. The studio emphasized the importance of early game showcases for independent developers to gain visibility and connect with their audience, urging platforms to bolster protections for original works.
This situation is not isolated. Alliance Arts, developer of Drunken Goddess Reflux, recently canceled plans for a Steam Next Fest demo due to similar fears of AI exploitation. While Steam Next Fest features a large number of participating demos, the evolving AI landscape suggests that developers will need to more carefully consider the risks associated with sharing early builds of their games. What were once contained demos or limited-time playtests now carry the potential for complete replication long before their intended release.