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Олександр КузьменкоGameDev Eng
17 February 2026, 14:44
2026-02-17
Ukrainian uses AI to create a browser extension "DO NOT PLAY" that marks Russian games on Steam
Denis Klevanny, the author of the Telegram channel «GRAY» dedicated to video games, announced the «DO NOT PLAY» extension for Chromium-based browsers. It marks Russian studios and publishers on the game’s page on Steam. dev.ua spoke with the developer and found out how the extension was created.
Denis Klevanny, the author of the Telegram channel «GRAY» dedicated to video games, announced the «DO NOT PLAY» extension for Chromium-based browsers. It marks Russian studios and publishers on the game’s page on Steam. dev.ua spoke with the developer and found out how the extension was created.
«Friends, I am pleased to present to you an extension that I have been working on recently and actively using locally myself,» Klevanny said in his Telegram channel.
He reported that «DO NOT PLAY» has the following capabilities:
labeling of Russian developers and publishers from a database that currently contains over 2,200 objects;
independently adding developers on the game page on Steam using the «+» button;
viewing and deleting developers from the database using the «i» button;
adding text (or emoji via ctrl+v), which will be written after the game name if the developer is in the database.
In a comment to dev.ua, Denis noted that he was not professionally involved in development, and only studied some basic programming languages at university.
«I basically coded everything in Claude. At first I tried doing it in Gemini, but it quickly started making mistakes, so I switched to Claude. It feels like heaven and earth,» the author of the expansion shared his impressions.
According to him, he decided to create «DO NOT PLAY» because he runs a channel about video game news. Klevanny noted that he often comes across interesting, at first glance, projects that turn out to be Russian, and therefore he does not want to pay their developers money.
Ukrainian gamers have previously created projects similar to «DO NOT PLAY» using the curatorial functionality of the Steam service itself. The most famous such curators are: " Be Careful, Russian Games «, " UkrGameCommunity «, USF and others.
«The problem with curators is that they mark specific games, not studios/publishers. Plus, filling curators is slow and manual. Meanwhile, the extension is based on developers/publishers and automatically marks all games from them. The only downside of the extension is that it only works in the browser, not in the Steam application. But I use Steam more often through the browser,» says Denis Klevanny.
Currently, his database of Russian studios and publishers includes over 2,200 companies. According to Denis, Vitaliy, a Ukrainian IT specialist and military man, who created the website “ Game Haven, ” helped a lot in filling the database. His project allows you to see which games have official and unofficial localization or are of Russian origin.
«Plus, the Russians themselves help fill the database, who leave links to VK or Telegram on their game pages, or indicate only English and Russian among the languages. The database will continue to expand, of course,» notes Denis.
He added that there are no plans to expand the «DO NOT PLAY» functionality yet and is currently collecting feedback from users. The extension can be downloaded from the Chrome Web Store and works in Chrome, Opera, and Edge browsers.
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