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Bethesda has sent legal counsel to confront whoever is behind Doomsol, a browser-based Doom clone tied to a cryptocurrency token called $DOOM, following weeks of confusing and increasingly concerning promotional activity from a well-known name in the franchise’s history. Sandy Petersen, the veteran level designer behind classic contributions to the original Doom, Doom II and Quake, spent much of August publicly promoting both the memecoin and the game on social media, drawing a mix of amusement and genuine worry from longtime fans before the coin’s value collapsed and the whole situation quietly went quiet.
The saga began on August 3, when Petersen posted a video of himself sitting at a PC wearing a Doom T-shirt, linking to his profile on the crypto trading platform Fomo and declaring himself fully part of the community building around the token, according to Kotaku’s reporting on the situation. The clip showed him purchasing more than $187 worth of the newly launched $DOOM memecoin. Later that same day, he posted a second video showing an additional $1,000 investment, followed shortly after by promotion of Doomsol itself, a browser-playable version of Doom that rewarded players with Sol, the native cryptocurrency of the Solana blockchain, for playing. Petersen continued promoting both the coin and the game across the following days, at one point claiming Doomsol had attracted thousands of active players.
Exactly what role Petersen played in either project remains somewhat unclear even now. Based on his own social media posts, he appears to have been involved at minimum in designing Doom-style levels for Doomsol while actively promoting the associated token. His son, Arthur Petersen, also became visibly involved in the promotion, and one crypto-focused account recapping a live audio conversation on X claimed Sandy Petersen was receiving fees and being paid well for building new levels for the game, describing the coin as something close to a retirement plan tied to his earlier Doom work.
Several details around the promotion did not hold up well under scrutiny. A video Petersen posted showing himself supposedly playing Doomsol was later identified as actually showing Freedoom, an entirely separate, unrelated fan project built as a free and open content replacement for Doom’s original commercial assets. The official Freedoom account publicly responded to clarify it had no connection to whatever Petersen was promoting, and stated plainly that it does not endorse cryptocurrency projects and recommends people avoid them. Shortly afterward, whoever had originally created the $DOOM token executed what crypto traders call a rug pull, abruptly abandoning the project and causing its value to collapse. Petersen stopped posting about either the coin or Doomsol almost immediately once the price crashed.
A brief resurgence followed toward the end of August, when a handful of individuals claiming to still be working on Doomsol attempted to rally interest and repromote both the game and the coin after its original creator had walked away. The token saw a short jump in value but never came close to its original highs, and both Petersens again fell largely silent on the topic shortly after.
Adding further confusion, archived versions of the Doomsol website listed Sandy Petersen as the project’s creator, though it remains unclear whether he was also responsible for creating the memecoin itself. Separate, similarly designed projects called Quakesol and Wolfensteinsol also surfaced around the same time, using comparable websites and mechanics, though Petersen’s involvement in those specific projects has not been confirmed. By the time Kotaku’s report was published, all three project websites appeared to have been taken offline, though archived versions remained accessible through the Wayback Machine.
Petersen has publicly argued that Doomsol operates on solid legal ground because of Doom’s open-source license, but that license permits building new, original games or porting the Doom engine to new platforms, not redistributing the original game’s copyrighted assets, including its logo, for commercial purposes tied to a cryptocurrency product. That distinction appears to be exactly what prompted Bethesda’s legal team to get involved, most likely through a cease-and-desist letter, though the company has not disclosed the specific contents of the letter or publicly confirmed who received it, despite it seeming likely to be directed at Petersen given his listed role as the project’s creator.
A Bethesda spokesperson framed the company’s concern around consumer clarity rather than creative restriction, telling Kotaku that the strength of Doom comes from its passionate community and that players deserve clear information about what counts as an official Doom experience. The spokesperson added that continued academic and creative use of Doom’s open-source engine remains entirely welcome, but that recreating and redistributing the game in a browser specifically to sell and promote a memecoin crosses into commercial territory the open license was never meant to cover.
The episode lands during an already turbulent stretch for the Doom franchise’s development community. Petersen’s crypto detour arrived amid a string of recent stories involving id Software, including significant layoffs at the studio under Xbox ownership and public criticism from several current and former developers about how the team has been treated following those cuts. For longtime fans who grew up playing levels Petersen designed decades ago, watching him pivot so publicly and unexpectedly into memecoin promotion added an unusually strange chapter to a franchise that has otherwise spent 2026 dealing with far more conventional industry turmoil.
Bethesda’s legal action remains in its early stages, and the company has not detailed what further steps it might take if the cease-and-desist request goes unanswered or if Doomsol-style projects resurface under new branding. Continuing coverage of how gaming companies are responding to unauthorized crypto projects tied to their franchises is available on Business Tech. Additional detail on the situation is available through Kotaku’s original reporting, and background on the legitimate open-source Doom project referenced in the story can be found through Freedoom’s official site.
